Answer:
Step-by-step explanation:
7 purple to 4 red = x purple to 32 red
7 / 4 = x / 32....cross multiply because this is a proportion
(4)(x) = (7)(32)
4x = 224
x = 224/4
x = 56 purple <==
Final answer:
To find the number of purple marbles in a bag that has 32 red marbles, given the ratio of 7 purple marbles for every 4 red marbles, simply divide 32 by 4 to find the number of sets and multiply by 7. The bag will contain 56 purple marbles.
Explanation:
Given the ratio of 7 purple marbles to 4 red marbles in a bag sold by Latoya's Marble Company, we can determine the number of purple marbles if a bag has 32 red marbles. To do this, we need to use the ratio to find out how many times the number of red marbles fits into the given amount and then multiply that number by the amount of purple marbles in the ratio.
Step-by-Step Calculation:
Start with the given ratio: 7 purple marbles for every 4 red marbles.
Determine how many sets of 4 red marbles there are in 32 red marbles by dividing 32 by 4, which is 8.
Since there are 7 purple marbles for every set, multiply 7 by the number of sets, which is 8.
The result is 56 purple marbles.
Therefore, a bag with 32 red marbles will contain 56 purple marbles.
3x +y = 14
Rewrite equation in slope intercept form solve for y
To rewrite the equation in slope-intercept form and solve for y, we isolate y on one side of the equation by subtracting 3x from both sides. The resulting equation is y = -3x + 14.
Explanation:To rewrite the equation in slope-intercept form and solve for y, we need to isolate y on one side of the equation.
Given the equation 3x + y = 14, we can start by subtracting 3x from both sides to get y alone.
The equation becomes y = -3x + 14, which is now in slope-intercept form (y = mx + b) where the slope (m) is -3 and the y-intercept (b) is 14.
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What percent of your budget of $6000 would your rent be if you pay $600 in rent?
Answer:
ur answer ( I think so it will be correct)
Step-by-step explanation:
$6000 percent $600
= 6000/600
= 60÷6 percent
= 10 percent
I THINK ITS HELPFULL TK YOU
what is an expression equivalent to 48+30
Answer:
Step-by-step explanation:
48 + 30 = 6(8 + 5)
Answer:78
Step-by-step explanation:
Equivalent expression is to carry out the addition process.
48 + 30 = 78
Solve for x and y:
28x-49y=35
4x-7y=5
A.The solution is (0, 0).
B.There are an infinite number of solutions.
C.X=3,y=1
D.There is no solution.
Answer:
D
Step-by-step explanation:
The lines are parallel, this means that they will never meet.
Answer: D no solution
Step-by-step explanation:
the first one is wrong because if they were both 0 than they would have to equal 0
the second one is wrong because no number works
the third one is wrong because it works on the second one but when you plug it into the first equation you get 95 = 35 which is incorrect.
D is the correct choice.
A store is having a sale on jelly beans and almonds. For 6 pounds of jelly beans and 2
pounds of almonds, the total cost is $16 . For 3 pounds of jelly beans and 5 pounds of almonds, the total cost is $13. Find the cost for each pound of jelly beans and each pound of almonds.
The cost of each pound of jelly beans is $ 2.25 and cost of each pound of almond is $ 1.25
Solution:
Let the cost of each pound of jelly beans is "a"
Let the cost of each pound of almond is "b"
For 6 pounds of jelly beans and 2 pounds of almonds, the total cost is $16
Therefore, we frame a equation as:
6 pounds of jelly beans x cost of each pound of jelly beans + 2 pounds of almonds x cost of each pound of almond = 16
[tex]6 \times a + 2 \times b = 16[/tex]
6a + 2b = 16 --------- eqn 1
For 3 pounds of jelly beans and 5 pounds of almonds, the total cost is $13
Therefore, we frame a equation as:
3 pounds of jelly beans x cost of each pound of jelly beans + 5 pounds of almonds x cost of each pound of almond = 13
[tex]3 \times a + 5 \times b = 13[/tex]
3a + 5b = 13 ----------- eqn 2
Let us solve eqn 1 and eqn 2
Multiply eqn 2 with 2
6a + 10b = 26 --------- eqn 3
Subtract eqn 1 from eqn 3
6a + 10b = 26
6a + 2b = 16
( - ) -------------------------
8b = 10
[tex]b = \frac{10}{8} = 1.25[/tex]
b = 1.25Substitute b = 1.25 in eqn 1
6a + 2(1.25) = 16
6a + 2.5 = 16
6a = 13.5
a = 2.25Thus cost of each pound of jelly beans is $ 2.25 and cost of each pound of almond is $ 1.25
Joe made a scale drawing of the community pool in his town. the pool has a perimeter of 77 meters, what is the length and width in meters?
Answer:
The length of the pool is 28 meters and the width of the pool is 10.5 meters.
Step-by-step explanation:
In the scale drawing of Joe, the community pool has (length : width) = 8 : 3
Let the actual length of the pool is 8x meters and the actual width is 3x meters.
Now, given that the actual pool has a perimeter of 77 meters.
So, 2(8x + 3x) = 77
⇒ 22x = 77
⇒ x = 3.5
So, the length of the pool is 8x = 8(3.5) = 28 meters and the width of the pool is 3x = 3(3.5) = 10.5 meters. (Answer)
Answer:
The length of the pool is 28 meters and the width of the pool is 10.5 meters.
Step-by-step explanation:
A. Suppose you have just inherited a sum of money. Let’s say you choose to invest the money. How much did you inherit? Choose an amount between $1000 and $100,000. Do not choose an increment of 1000. In other words, do not choose $1000, $2000, $5000, $14000, etc.
B. What is your interest rate? Choose a rate between 0.5% and 3%.
C. Using yearly compounding, calculate the accrued value after 5 years, 10 years, and 15 years. Show all work. You may show your work as an inserted image.
Amount =$48003.20
Step-by-step explanation:
Here apply the compound interest formula;
[tex]A=P(1+\frac{r}{n} )^{nt}[/tex]
where;
P=Principal amount invested = $37500
r=rate of interest as a decimal, 2.5% =0.025
n=number of compounding per year=1
t=time period the amount in invested=10
In our case, the amount after investing will be;
[tex]A=37,500(1+0.025)^{10} \\\\A=37,500(1.025)^{10} \\\\A=48003.20[/tex]
Interest earned after the period= $48003.20-$37500 =$10503.20
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Keywords: inherit, sum, money, interest
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There are sparrows and cardinals that feed at Mrs. Sims bird feeder. The ratio of sparrows to cardinals is 3:1. There are at least 7, but less than 11 sparrows that eat at Mrs. Sims bird feeder. Put an S in the grid below to show the number of sparrows and a C to show the number of cardinals. There may be extra squares. (See attachment)
Answer:
Please find the grid of Sparrows and Cardinals below.
Step-by-step explanation:
Ratio 3:1 of Sparrows to Cardinals
There are at least 7, but less than 11 sparrows that eat at Mrs. Sims bird feeder
Let's build the grid for sparrows and cardinals, this way:
Sparrows = 7 - 8 - 9 - 10 - 11
Cardinals = 2 - 3 - 3 - 3 - 4
For calculating the number of cardinals we use the ratio 3:1 and round the number of cardinals to the next whole number.
Number of sparrows 7 to 11
Number of cardinals 2 to 4
PLZ HELP 20 points and brainliest
Select TWO equations that have infinitely many solutions.
A.
2(7 – 4x) = 4(5 – 2x) – 6
B.
6(x – 9) = 6x – 54 + x
C.
4(x + 4) = 2(2x + 5) + 6
D.
5(x – 8) + 10 = 5(x + 2)
Answer: A. 2(7 – 4x) = 4(5 – 2x) – 6
C. 4(x + 4) = 2(2x + 5) + 6
Step-by-step explanation:
Infinitely solution means when all numbers are solutions . Checking the equations given one by one
A. 2(7- 4x ) = 4(5 - 2x ) - 6
Expanding , we have
14 - 8x = 20 - 8x - 6
14 - 8x = 20 - 6 - 8x
14 - 8x = 14 - 8x , this is just a typical example of infinitely many solutions because any value of x chosen will satisfy the equation.
B. 6(x - 9 ) = 6x - 54 + x
Expanding , we have
6x - 54 = 6x + x - 54
6x - 54 = 7x - 54
collecting the like terms
6x - 7x = -54 + 54
- x = 0
x = 0
This equation has just one solution at x = 0 , because 0 is the only value of x that will satisfy the equation
C. 4( x + 4 ) = 2 ( 2x + 5 ) + 6
4x + 16 = 4x + 10 + 6
4x + 16 = 4x + 16
This equation also have infinitely many solutions
D. 5 ( x - 8 ) + 10 = 5 ( x + 2 )
5x - 40 + 10 = 5x + 10
5x - 30 = 5x + 10
This equation has no solution.
Therefore , the equations with infinitely many solutions are equations A and C
y=6x-10=x-4 what is x
Answer:
x=6/5
Step-by-step explanation:
y=6x-10
y=x-4
-----------
6x-10=x-4
6x-x-10=-4
5x-10=-4
5x=-4+10
5x=6
x=6/5
y=6/5-4=6/5-20/5=-14/5
Adrian made the cakes shown below for a 3 cakes at the party Adrian will serve each guest 1/8 of a cake what is the greatest number of guests Adrian can serve?
Answer:
24 Guests
Step-by-step explanation:
3 x 8 = 24.
Answer:
since each guest is 1/8 of the cake and he has 3 cake . So the great number of the guest is 24....
Step-by-step explanation:
Should be 24 is the answer...
I hope this will help...Have a nice day...
What steps would you do to solve n/7 + 3 ≥ -4?
a Multiply by seven, then subtract three.
b Add three, then multiply by seven.
c Subtract three, then multiply by seven.
d Subtract three, then divide by seven.
The right answer is Option C.
Step-by-step explanation:
Given inequality is
[tex]\frac{n}{7}+3\geq -4[/tex]
We will first subtract three from both sides.
[tex]\frac{n}{7}+3-3\geq -4-3\\\frac{n}{7}\geq -7[/tex]
In the next step we will multiply both sides with 7 to determine n.
Therefore,
Subtract three, then multiply by 7.
The right answer is Option C.
Keywords: inequality, subtraction
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A 2-column table has 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is labeled f (x) with entries 12.5, 2.5, 0.5, 0.1, 0.02.
Which exponential function is represented by the table?
f(x) = 0.2(0.5x)
f(x) = 0.5(5x)
f(x) = 0.5(0.2x)
f(x) = 0.2(0.2x)
Answer:
[tex]f(x)=0.5\cdot (0.2)^x[/tex]
Step-by-step explanation:
Given the table
[tex]\begin{array}{cc}x&f(x)\\ \\-2&12.5\\ -1&2.5\\0&0.5\\1&0.1\\2&0.02\end{array}[/tex]
The exponential function can be written [tex]f(x)=a\cdot b^x.[/tex] To find [tex]a[/tex] and [tex]b,[/tex] substitute some values:
When [tex]x=0,\ f(x)=0.5,[/tex] then
[tex]0.5=a\cdot b^0\Rightarrow a=0.5\ [ b^0=1][/tex]
When [tex]x=1,\ f(x)=0.1,[/tex] then
[tex]0.1=0.5\cdot b^1\Rightarrow 0.5b=0.1,\ b=0.2[/tex]
Thus,
[tex]f(x)=0.5\cdot (0.2)^x[/tex]
Check remaining values:
[tex]f(-2)=0.5\cdot 0.02^{-2}=0.5\cdot 5^2=0.5\cdot 25=12.5\\ \\f(-1)=0.5\cdot 0.2^{-1}=0.5\cdot 5=2.5\\ \\f(2)=0.5\cdot 0.2^2=0.5\cdot 0.04=0.02[/tex]
Part A: Write an equation of a line that is perpendicular to the line y = 2/3x + 5 and passes through the point (4, 0).
Part B: Explain how you determine the equation in 3-4 sentences using at least 6 of the words below.
Slope
y-intercept
x-intercept
perpendicular
opposite
reciprocal
substituted/substitution
slope-intercept
ordered pair
Step-by-step explanation:
First you need to make a line perpendicular to y=2/3x+5. To do that you have to know that, if we use y=ax+b, a1*a2=-1. That is if a1 and a2 are perpendicular. So we get 2/3*a2=-1. -1/ 2/3=a2. a2=-1.5. We get y=-1.5x+b. Fill in (4,0) on y=-1.5x+b abd we get 0=-1.5(4)+b. b=6
Answer:
y = (-3/2)x - 6
Step-by-step explanation:
slope of the line y= 2/3x + 5
slope = 2/3
for two perpendicular lines
slope1*slope2 = -1
so, slope2 = (-1)*(3/2) = -3/2
hence for it to pass (4,0)
slope2=(y2 - y1)/(x2 - x1)
-3/2 = (y - 0)/(x - 4)
cross multiplying
-3x -12 = 2y
the equation of the line is
y = (-3/2)x - 6
Find the coordinates of the midpoint of the line segment with the endpoints C(1,0) and D(5,4)
Answer:
(3, 2 )
Step-by-step explanation:
Given the endpoints are (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
[ 0.5(x₁ + x₂ ), 0.5(y₁ + y₂ ) [
Here (x₁, y₁ ) = (1, 0) and (x₂, y₂ ) = (5, 4), thus
midpoint = [0.5(1 + 5), 0.5(0 + 4) ] = (0.5(6), 0.5(4)) = (3, 2 )
Answer:
(3,2)
Step-by-step explanation:
To find a midpoint of two given points, we can use the formula:
[tex](x_{m} ,y_{m} ) = (\frac{x_{1} +x_{2} }{2} , \frac { y_{1} +y_{2}}{2})[/tex]
(i.e. we just take the average of the x coordinates, and similarly, the average of the y coordinates).
so we get:
midpoint = ( (1+5)/2, (0+4)/2 )
= (3, 2)
(-5, -5), 6x - y = 1
Write an equation of the lines that passes through the given point and is parallel to the given line.
Answer:
Step-by-step explanation:
6x - y = 1
6x - 1 = y.....rearrange
y = 6x - 1......slope is 6. A parallel line will have the same slope.
y = mx + b
slope(m) = 6
(-5,-5)...x = -5 and y = -5
now we sub and find b, the y int
-5 = 6(-5) + b
-5 = -30 + b
-5 + 30 = b
25 = b
so ur equation is : y = 6x + 25 <==
How many 3/8 go into 3/2
Answer: 3/8 can’t go to 3/2
Step-by-step explanation:
Quadrilateral TRPK ~ Quadrilateral EWMN Which statements are correct? Select all that apply. Question 8 options:
TK/NM = RP/EW
∠R≅∠W
∠P≅∠N
RP/WM = TR/EW = TK/EN
Raphael runs every day for several weeks. He runs for 35 days in a row. How many weeks did he run?
Answer:
5 weeks
Step-by-step explanation:
There are 7 days in a week.
5 weeks * 7 days = 35 days.
Raphael ran for a total of 5 weeks.
To calculate how many weeks Raphael ran, we need to divide the number of days he ran by the number of days in a week.
Raphael ran for 35 days.
Since there are 7 days in a week, we divide 35 by 7:
35 days / 7 days per week = 5 weeks
Therefore, Raphael ran for 5 weeks.
The difference of r and 18 is equal to five
Answer: 23
Step-by-step explanation: 18+5=23
23-5=18
R=23
The difference of r and 18 means subtraction: r - 18 = 5
To isolate r, you add 18:
r = 18 + 5 or 23
r = 23
(6c)^3
---------
c
please help
Answer:
216c^3
Step-by-step explanation
Are 17 heartbeats in 15 seconds and 68 heartbeats in 60 seconds Equivalent
Answer:
1.133.
Step-by-step explanation:
Yes because if you divide 17 by 15 you get about 1.133 and if you divide 68 by 60 you also get about 1.133.
Answer:
Step-by-step explanation:
17/15 = 1 2/15
68/60 = 1 2/15
yes, they are equivalent
Which mathematical symbol would best fill in the blank to compare the two real numbers?
square root of 2 blank 1.8 repeating
<
>
=
≈
3.) mr. smith’s class sold wrapping paper for $3.50 each and mr. davis’ class sold magazines for $2.75 each. together, the classes sold 72 items and earned $222 for their school. a. write and solve a system of equations that model the problem. show all your work. Need answer ASAP!!!!!
Answer:
The number of wrapping paper sold was 32 and the number of magazines sold was 40
Step-by-step explanation:
Let
x ----> the number of wrapping paper sold
y ----> the number of magazines sold
we know that
The classes sold 72 items
so
[tex]x+y=72[/tex] ----> equation A
The classes earned $222 for their school
so
[tex]3.50x+2.75y=222[/tex] ----> equation B
Solve the system of equations by graphing
Remember that the solution of the system of equations is the intersection point both graphs
using a graphing tool
The solution is (32,40)
see the attached figure
therefore
The number of wrapping paper sold was 32 and the number of magazines sold was 40
Broccoli costs $1.50 per pound at a store. How much money does 32
ounces of broccoli cost?
Answer:
2 pounds
Step-by-step explanation:
Answer:$3
Step-by-step explanation:32 ounces is equal to 2 pounds. 1.50 times 2
What time is past 13 hours past 1:00 am
Answer:
Therefore the answer is 14:00 hours or we can also write this as
14:00 - 12:00 = 2 : 00 pm.
Step-by-step explanation:
13 hours past 1:00 am is equal to 13 + 1 = 14.
Therefore the answer is 14:00 hours or we can also write this as
14:00 - 12:00 = 2 : 00 pm.
Answer: That would be 2.00 P.M
Step-by-step explanation:
what is the value of (5r+1/5) squared when r=0
Answer:1/5
Explanation The answer is 1/5 because 05×0 is zero so 0+1/5 equals 1/5
Answer:
1/5
Step-by-step explanation:
A 22inch piece of steel is cut into three pieces so that the second piece is twice as long as the first piece, and the third piece is one inch more than four times the length of the first piece. Find the length of the pieces
Answer:
The length of the pieces is 3 inch, 6 inch and 13 inch.Step-by-step explanation:
Let, the length of the first piece is x inch.
Hence, the length of the second piece is 2x.
It is given that, the length of the third piece is one inch more than four times of the first piece. Hence, the length of the third piece is 4x + 1 inch.
The total length of the steel is 22 inch.
Hence, x + 2x + 4x + 1 = 22
or, 7x = 21
or, x = 3.
The length of the second piece is [tex]2x = 2\times3 =[/tex] 6 inch.
The length of the third piece is [tex]4x + 1 = 12 + 1 =[/tex] 13 inch.
The lengths of the three pieces of steel are 3 inches, 6 inches, and 13 inches respectively.
Explanation:Let's denote the length of the first piece as x. According to the problemm, the second piece is twice as long as the first piece, which could be represented as 2x. The third piece is said to be one inch more than four times the length of the first piece, which could be represented as 4x + 1. Since the total length of the steel is given as 22 inches, we write down this equation: x + 2x + 4x + 1 = 22.
Simplifying this equation, we get: 7x + 1 = 22. We then subtraact 1 from both sides to isolate the term with x on one side: 7x = 21. Finally, we solve for x by dividing both sides by 7: x = 3.
Therefore, the length of the first piece of steel is 3 inches. The length of the second piece is twice that, or 6 inches. The length of the third piece is four times the length of the first piece plus one inch, or 13 inches.
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Bonita said that the product of 56 × 123 is 73. How can you tell that her answer is wrong?
Answer:
It is wrong because the answer should be way greater than the factors.
by the way the anwer is 6888
Step-by-step explanation:
Answer:
5/6 of a number cannot be greater than the number.
Step-by-step explanation:
Is 25/176 a repeating or terminating decimal
It repeats since it can't be simplified.