Marcia can make 5 candles in an hour. Kevin can make only 4 candles in an hour, but he already has 7 completed candles. Explain to Marcia how she can use a system of equations to determine when she will have the same number of candles as Kevin. Use complete sentences.


Answers

Answer 1
m = marcia's total amount of candles

k = kevin's total amount of candles

h = amount of hours

so in 1hr she makes 5(1), in 2hrs she makes 5(2) and 3 she makes 5(3), in "h" hours she makes 5h.

kevin makes in 1hr 4(1), in 2hrs 4(2) and 3hrs 4(3), in "h" hours 4h.  But kevin already has 7 candles done from the day before, so the 4h is really additional to his 7 candles.

[tex]\bf \begin{cases} m=5h\\\\ k=4h+7 \end{cases}\impliedby \textit{when are they equal?}\qquad \stackrel{m}{5h}~~=~~\stackrel{k}{4h+7}\\\\ -------------------------------\\\\ 5h=4h+7\implies h=7[/tex]

Related Questions

The measure of the​ angle's supplement is 40​° more than three times that of its complement. find the measure of the angle described

Answers

angle is x. sup - adds up to 180. comp adds up to 90

180-x = 3(90-x)+40
180-x = 270-3x+40
180-x = 310-3x
180+2x = 310
2x = 130
x=65

there are 45 cans of mixed nuts if each can has 338 nuts what is the total number of nuts,n, in all of the cans

Answers

The answer is 15210 nuts in all the cans.
Final answer:

The total number of nuts in all the cans is found by multiplying the number of cans (45) by the number of nuts in each can (338). Hence, the total number of nuts, n, in all of the cans is 15210.

Explanation:

This problem is related to simple multiplication. Here, you have 45 cans of nuts and each can contains 338 nuts. So if you want to find the total number of nuts in all the cans, you need to multiply 45 (total number of cans) by 338 (number of nuts in each can).

The multiplication is as follows:

45 * 338 = 15210

So, the total number of nuts, n, in all of the cans is 15210.

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What is m∠AEB?



Enter your answer in the box.

Answers

angle AEB and angle CED are vertical angles, this means they equal each other, therefore we set their values as an equation and solve:

5x-10=3x+40
Subtract 3x to both sides
2x-10=40
Add 10 to both sides
2x=50
Divide both sides by 2
x=25

After we have gotten the value of x we can plug it in into the equation of angle AEB:

5x-10
Substitute x by 25
5(25)-10
Distribute
125-10
Substract
115

The measurement of angle AEB is 115

Hope it helped!, have a great day.

Answer: It's 115 I took the k12 test

Step-by-step explanation:

The ratio of the number of cookies to the number of cupcakes in a box is 5:4. Which table shows the possible amounts of cookies and cupcakes in a box, given the ratio?
#1
Cookies: Cupcakes:
5 4
10 8
20 16
40 32

#2
Cookies: Cupcakes:
5 4
10 9
20 19
40 39

#3
Cookies: Cupcakes:
5 4
6 5
7 6
8 7


#4
Cookies: Cupcake:
5 4
7 6
9 8
11 10

Answers

#1 each number in the ratio is continually multiplied by 2

Table 1 shows the possible amounts of cookies and cupcakes in a box, given the ratio of 5 : 4.

What is Ratio?

A ratio indicates how many times one number contain in another number.

Given that;

The ratio of the number of cookies to the number of cupcakes in a box is  5 : 4.

Now, In the table 1;

The ratio are given as,

5 : 4

10 : 8

20 : 16

40 : 32

Since, The ratio are 5 : 4.

Simplify all the ratio as;

10 : 8 = 10/8

        = 5/4

        = 5 : 4

And, 20 : 16 = 20/16

                   = 10/8

                   = 5/4

                   = 5 : 4

And, 40 : 32 = 40/32

                    = 20/16

                    = 10/8

                    = 5/4

                    = 5 : 4

Thus, Table 1 shows the possible amounts of cookies and cupcakes in a box, given the ratio of 5 : 4.

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A market sells a six-pound bag of potatoes for $6.27 and a 7.5-pound bag of potatoes for $7.65. Which bag of potatoes is a better buy??

Answers

The 7.5-pound would be a better buy since it is costing 1.02 per pound, while the 6 pound bag is costing 1.045 per pound. In conclusion the 7.5 bag is more expensive since it has more quantity, but in terms of a better buy, it is the choice to go with since you are getting a smaller price per pound.

The Frostburg-Truth bus travels on a straight road from Frostburg Mall to Sojourner Truth Park. The mall is 4 miles east and 4 miles north of the City Center. The park is 2 miles west and 4 miles south of the Center. How far is it from the mall to the park to the nearest tenth of a mile?

11.1 miles

5.7 miles

10.0 miles

4.5 miles

Answers

The Answer is 10.0 miles because the mall is 4 miles from the center and the park is 2 miles away from it so you add the 4 miles from the mall, 2 miles from the park and then 4 miles south from the city center so you add that together and get 10.0 miles their is no need for rounding

Answer:

10.0 is the correct answer  

Step-by-step explanation:

Which pair of angles shares ray A-F as a common side?

Answers

<BAF and <FAD is the answer 

Given : FA is a ray.

Find out the pair of angles share the common side FA.

To proof

As shown in the diagram

∠ BAF and ∠DAF  are th.e pair of angles shares FA as a common side

REASON

Adjacent Angles are those angles that share a common side, a common vertex, and no common interior points.

as ∠ BAF and ∠DAF  shares common vertex A and  common side FA.

Therefore

∠ BAF and ∠DAF  are th.e pair of angles shares FA as a common side




Fred has a savings account balance of $1728.57. The interest-rate on the account is 3.4% compounded daily. If he opened the account nine years ago, what was the value of his initial deposit?

Answers

The formula is
A=p (1+r/k)^kt
A current balance 1728.57
P initial deposit ?
R interest rate 0.034
K compounded daily 365
T time 9 years
Solve the formula for p
P=A÷(1+r/k)^kt
P=1,728.57÷(1+0.034÷365)^(365×9)
p=1,272.91

Hope it helps!

Fred's initial deposit, considering a 3.4% interest rate compounded daily over nine years, was approximately $1258.16.

To find Fred's initial deposit, we need to use the formula for compound interest:
A = P(1 + r/n)ⁿᵗ, where:

A is the amount of money accumulated after n years, including interest.P is the principal amount (the initial deposit).r is the annual interest rate (decimal).n is the number of times interest is compounded per year.t is the number of years the money is invested or borrowed for.

Here, we know:

A = $1728.57r = 0.034 (3.4% interest rate)n = 365 (compounded daily)t = 9 years

We need to find P. Rearrange the formula to solve for P:

P = A / (1 + r/n)ⁿᵗ

Substitute the known values:

P = 1728.57 / (1 + 0.034/365)³⁶⁵×⁹

First, calculate the daily interest rate

0.034 / 365 = 0.00009315

Next, calculate the exponent:

(365 × 9) = 3285

Now, compute (1 + daily interest rate) raised to the power of 3285:

(1 + 0.00009315)³²⁸⁵ = 1.37423

Finally, divide the final amount by this value:

P = 1728.57 / 1.37423 = 1258.16.

The graph shows the number of each kind of book in Hero's personal library. A book is chosen randomly. What is the probability that the book chosen is a biography?
A)2/15
B)4/15
C)1/30
D)1/4

Answers

Answer: A is the right answer .Probability of the book chosen is a biography is [tex]\frac{2}{15}[/tex].


Step-by-step explanation:

According to the given graph or pie chart

The number of biography books=4

Total books= Romance books+ Science fiction books+ Biography books+Adventure books =2+14+4+10=30

Let B be the event of choosing a biography book then

Probability of the book chosen is a biography P(B)=[tex]=\frac{biography\ books}{total\ books}=\frac{4}{30}=\frac{2}{15}[/tex]

Therefore, Probability of the book chosen is a biography is  [tex]\frac{2}{15}[/tex].

From the graph, it is found that there is a [tex]\mathbf{\frac{2}{15}}[/tex] probability that the book chosen is a biography, and the correct option is given by option A.

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem:

There are 4 + 2 + 10 + 14 = 30 books in the hero's library.Of those, 4 are biographies.

[tex]p = \frac{4}{30} = \frac{2}{15}[/tex]

Thus:

[tex]\mathbf{\frac{2}{15}}[/tex] probability that the book chosen is a biography, and the correct option is given by option A.

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Which principle helps us to determine the total number of outcomes in a sample space?

Answers

The principle that helps us to determine the total number of outcomes in a sample space is the counting principle.

The Fundamental Counting Principle: If there are “a” ways for one event to happen, and “b” ways for a second event to happen, then there are “a * b” ways for both events to happen.

henry is following the recipe card to make a cake. he had 95 cups of flour. how many cakes can henry make?

flour needed for each cake
2 2/9 cups of batter
1/2 cup for topping

Answers

First, we add up the amount of flour needed for each cake by the equation,

    total flour needed = flour need for batter + flour needed for topping

Substituting,
   total flour needed = 2 2/9 cups + 1/2 cup = 49/18 cups

Then, we divide the total amount of flour by the answer obtained above to determine the number of cakes that can be made. 

    number of cakes = total amount of flour / total flour needed per cake
      number of cakes = 95 cups / (49/18) = 34.89 cakes

Hence, the number of cakes that can be produced is only 34. 

Answer:

the number of cakes that can be produced is only 34.  

Step-by-step explanation:

   total flour needed = flour need for batter + flour needed for topping

,

  total flour needed = 2 2/9 cups + 1/2 cup = 49/18 cups

after, we divide the total amount of flour by the answer obtained above to determine the number of cakes that can be made.

   number of cakes is the total amount of flour  needed per cake

     number of cakes is  95 cups / (49/18) = 34.89 cakes

the number of cakes that can be produced is only 34.

find cos B.

a. cosB= 41/40
b. cosB=9/41
c. cosB=40/41
d. cosB=9/40

Answers

Answer is c. Cos B= 40/41

20 POINTS if you answer!!!!

Clarence sells yearly subscriptions to a particular magazine. He sells at least 10 and no more than 25 subscriptions each week. The function f(t)=48tf(t)=48t represents the amount of money earned for selling t subscriptions each week. What is the practical range of the function?

Answers

Answer:

All multiples of 48 between 480 and 1200, inclusive

Step-by-step explanation:

I took the test;)

Final answer:

The practical range of the function is [480, 1200].

Explanation:

The function f(t)=48t represents the amount of money earned by Clarence for selling t subscriptions each week. To find the practical range of the function, we need to determine the minimum and maximum value of t that satisfy the given conditions. Since Clarence sells at least 10 and no more than 25 subscriptions each week, the practical range of the function is [480, 1200]. This means that the amount of money earned by Clarence each week can range from $480 to $1200.

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What should you do to both sides of the inequality in order to solve x + (-2) > 3?

Subtract 2.
Add 2.
Add 3.
Subtract 3.

Answers

I don’t want to confuse you.
Your original equation is x + (-2) > 3
That is also the same as x - 2 > 3

I prefer the second equation so I don’t get my addition and subtraction of the negative number confused.

You want to get x by itself. You need to ADD 2 to both sides of the inequality.
Your answer would be : x > 5

List two advantages of buying and two advantages of renting

Answers

Here are your answers:                                                                                   Renting:                                                                                                               1. When you rent something you will have for a good amount of time.               2. When you rent something you have control over it since you rented it with your money.                                                                                                    Buying:                                                                                                                 2, You get to keep it forever.                                                                      3. you can sell it for more so you can make a profit to buy something else.

Answer:

advantages of buying:

-you own your own property

-the value of your property may increase over time

-you can improve or decorate your house as you wish

advantages of renting:

-your landlord is responsible for repairs

-you need to pay fewer up-front cost

-paying rent on time helps you build a good credit history

-renting is better if you dont plan to stay long

-you can have roomates to share costs

Which phrase accurately describes a distribution that's bell shaped but not symmetric

Answers

The distribution is skew

Answer:

The distribution is skewed (either to the left or to the right).

Step-by-step explanation:

Skewness is the measure of how symmetric the distribution of the data is around its mean. It can be skewed either to the left or to the right (meaning that one of the "tails" of the distribution is longer than the other). This means that the mass your data set's observations tends to accumulate more around one extreme of the distribution than around the other.

A strictly symmetric, normal distribution would have a skewness measure of 0.

Bernard solved the equation 5x+(-4)=6x+4 using algebra tiles. Which explains why Bernard added 5 negative x-tiles to both sides in the first step of the solution?

A) He wanted to create zero pairs on the left side of the equation to get a positive coefficient of x on the right side.

B) He wanted to combine more negative tiles with the 4 negative tiles on the left side of the equation.

C) He wanted to remove the larger coefficient on the left side of the equation.

D) He wanted to have 10 x-tiles on the left side of the equation.

Answers

To find why he would do this, we need to understand what all the possible first steps are in this equation.

You could add 4 to both sides.
You could subtract 4 from both sides.
You could subtract 5x from both sides.
You could subtract 6x from both sides.

Any of these work. In Bernard's case, he added 5 negative x tiles, meaning he subtracted. C and D already make no sense, but allow me to further explain. By him subtracting 5x from both sides, the equation turns into:

-4 = x + 4

By this point, he can just subtract 4 from both sides to find the value of x. But the question asks for why he did the first step. Therefore, it would be A.

Answer:

a

Step-by-step explanation:

if dont want to read

Your parents win the lottery and offer you an incredible deal. They will pay you money each day for 30 days for doing your chores. You can choose to be paid one million dollars on the 30th day, or you can pay be paid one cent the first day, and each day the amount you get paid is doubled from the previous day. Which is deal would you choose and why?

Answers

One million dollars on the 30th day, it amounts to more than the collective of pennys would.
I would choose the 1 million on the 30th day because it is simply the better deal

Problem: Find the value of $x$ that maximizes $$f(x) = \log (-20x + 12\sqrt{x}).$$ If there is no maximum value, write "NONE".

Answers

Answer:

The value of x is 0.09

Step-by-step explanation:

Here, the given function is,

[tex]f(x)=\log(-20x+12\sqrt{x})[/tex]

Differentiating with respect to x,

[tex]f'(x)=\frac{1}{-20x+12\sqrt{x}}(-20+\frac{12}{2\sqrt{x}})[/tex]

[tex]=\frac{-20+\frac{6}{\sqrt{x}}}{-20x+12\sqrt{x}}[/tex]

[tex]=\frac{-10+\frac{3}{\sqrt{x}}}{-10x+6\sqrt{x}}[/tex]

[tex]=\frac{-10\sqrt{x}+3}{2\sqrt{x}(-5x+3\sqrt{x})}[/tex]

Again differentiating with respect to x,

[tex]f''(x)=-\frac{(-10\sqrt{3}+3)(-15x+3\sqrt{3})}{4x\sqrt{x}(-5x+3\sqrt{x})}[/tex]

For maxima or minima,

[tex]f'(x) = 0[/tex]

[tex]\implies \frac{-10\sqrt{3}+3}{2\sqrt{x}(-5x+3\sqrt{3})}=0[/tex]

[tex]\implies x \approx 0.09[/tex]

At x = 0.09,

f''(x) = negative,

Hence, for x = 0.09, f(x) is maximum.

Solve x2 + 6x + 7 = 0.

Answers

Answer:

[tex]x=-3+\sqrt{3}[/tex]    , [tex]x=-3-\sqrt{3}[/tex]

Step-by-step explanation:

x2 + 6x + 7 = 0

Solve the equation for x

To solve this we apply quadratic formula

[tex]x=\frac{-b+-\sqrt{b^2-4ac} }{2a}[/tex]

a= 1 , b= 6 , c= 7

Plug in all the values in the formula

[tex]x=\frac{-6+-\sqrt{6^2-4(1)(7)} }{2(1)}[/tex]

[tex]x=\frac{-6+-\sqrt{36-28} }{2(1)}[/tex]

[tex]x=\frac{-6+-\sqrt{8} }{2(1)}[/tex]

[tex]x=\frac{-6+-2\sqrt{2} }{2}[/tex]

Divide each term by 2

[tex]x=-3+- \sqrt{3}[/tex]

so we got two value for x

[tex]x=-3+\sqrt{3}[/tex]    , [tex]x=-3-\sqrt{3}[/tex]

A sofa is on sale for 357 which is 32 percent less than the original price how much is the original price

Answers

So the equation is:

x - 357 / x = 32 / 100
(cross multiply)
100(x - 357) = 32x
100x - 35700 = 32x
(subtract 100x from both sides)
-35700 = -68x
525 = x

so the sofa was originally $525

Final answer:

The sofa's original price is calculated by using the formula: original price = sale price/percentage in decimal format. In this case, the percentage is 68%, and hence the original price would be 357 / 0.68 which is equal to $525.

Explanation:

This is a percentage problem. If the sale price of $357 represents 68% of the original price (because 100% - 32% is 68%), we can find the original price of the sofa using the formula: original price = sale price/percentage in decimal format.

Therefore, the original price would be 357 / 0.68 = $525

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A box contains 3 items that are labeled a, b, and
c. two items are selected at random (without replacement) from this box. list all the possible outcomes for this experiment.

Answers

you could pick:

 A & B

 A & C

B & C

B & A

C & A

C & B


The total number of possible outcomes is 6 and this can be determined by using the given data.

Given :

A box contains 3 items that are labeled a, b, and  c.Two items are selected at random (without replacement) from this box.

The following steps can be used in order to determine all the possible outcomes for this experiment:

Step 1 - According to the given data, the total number of items in the box is 3.

Step 2 - The total number of outcomes for this experiment is given by:

Total outcomes = 3!

Step 3 - Simplify the above expression.

Total outcomes = 3 [tex]\times[/tex] 2 [tex]\times[/tex] 1

                          = 6

Step 4 - Now, the list of all the outcomes for this experiment:

A and B

A and C

B and C

B and A

C and A

C and B

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Artaud noticed that if he takes the opposite of his age and addes 40 he gets the number 28 how old is artaud

Answers

let x be the age of Artaud 

so - x  the opposite 

then -x + 40 = 28  
so x=  12 

his age is 12

Answer:

Artaud is 12 years old

Step-by-step explanation:

sin x°= 4/15 round to nearest tenth find x

Answers

Take the arcsin on both sides.

Let x = the angle you need to find.

arcsin(sin x) = arcsin(4/15)

x = arcsin(4/15)

x = 15.4660099534

x = 15.47°

Done!

LaTonya has 16 photos on her phone , and Luis has p photos in his wallet.
Which algebraic expression represents the total number of photos that LaTonya and Luis have ?

Answers

total numbers of photos=16+p

Answer:

The expression is 16 + p

Step-by-step explanation:

Algebraic expression is a mathematical phrase that contains numbers and variables with an operation ( addition or subtraction etc. )

Given,

The number of photos Latonya has on her phone = 16,

While p represents the number of photos Luis has in his wallet,

Where p is a variable,

So, the total number of photos = Latonya's photos + Luis's photos

= 16 + p

Hence, the required expression is '16 +p'

The 55 bridesmaids want to make 325 favors for a wedding. Each favor takes about 2 1/2 minutes to make.

About how long will each bridesmaid have to spend making favors?


A.First pic
B.2nd
C.3rd pic

Answers

Given that 55 bridesmaids want to make 325 favors for a wedding.

This means that each bridesmaid will be making on the average [tex]\frac{325}{55}=5\frac{10}{11}[/tex] favors.

Given that aach favor takes about [tex]2 \frac{1}{2}[/tex] minutes to make.

Thus, each bridesmaid will be spending about

[tex]5\frac{10}{11}\times2 \frac{1}{2}= \frac{65}{11} \times \frac{5}{2} \\ \\ = \frac{35}{22} =14.77\approx15 \ minutes[/tex]

An astronaut who weighed 150 pounds on Earth found that his weight on Jupiter was 400 pounds. He captured an alien that weighed 120 pounds on Jupiter. What is the alien's weight on Earth?

Answers

Answer:

45 pounds

Step-by-step explanation:

At a grocery store, blueberries come packaged in 8-ounce containers for $2.80. At a farmer's market, blueberries cost $4.20 for 14 ounces. There are 16 ounces in one pound. Which statement accurately compares the cost of blueberries?

Answers

The answer is letter C.

In the grocery, the prices per product is represented by: 
$2.80/8 ounce
$0.35/ounce
Converted to pounds...
$5.6/lb

In the farmer's market, the prices per product is represented by: 
$4.2/ 14 ounces
$0.30/ounce
Converted to pounds...
$4.8/lb

The farmer's market blueberries is cheaper than the grocery's by $0.80 per pound.

Answer:

$0.80

Step-by-step explanation:

Please Help!!! "What is the area of trapezoid ABCD? Enter your answer as a decimal or whole number in the box. Do not round at any steps."

Answers

To find the length of each side of the trapezoid, you need to use the distance formula.
AB = (-3,2) and (1,5)
BC = (1,5) and (7,-3)
CD = (7, -3) and (0, -2)
AD or DA = (0,-2) and (-3,2)
Now, just use the distance formula for each line. Doing so gives us:
AB = 5
BC = 10
CD = 7.071107...
DA or AD = 5
The height is AB, the first base is BC and the second base is CD. We can plug the values for these sides into the trapezoid area formula, which is A = base 1 + base 2 all over 2 times the height. Doing so gives us 37.5 units². Therefore, the answer to your query is 37.5 units². Hope this helps and have a nice day!

Answer:

The Answer is 37.5

Step-by-step explanation:



Felicia installed a new pool for $17,190 using a 12-month deferred payment plan with an interest rate of 18.67%. What is the balance after the deferment period if payments of $589 are made each month?
a. $10,122.00
b. $20,688.76
c. $13,620.76
d. $17,190.00

Answers

B is the right answer

Answer:

a. $10,122.00

Step-by-step explanation:

By definition the deferment period is a time during which a borrower does not have to pay interest or repay the principal on a loan.

In this case the balance should be the initial value $17,190, but Felicia made 12 payments of $589 each one.

So, $589 x 12 = $ 7,068.

$17,190- $ 7,068 = $10,122

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