Which ordered pairs are a solution are a solution to the equation?
y = 8x
Select all that apply
a) (3, -24)
b) (2,16)
c) (1,8)
d) ( -16,-2)
e) (-3,-24)
Answer:
I think the answer us
D no.
Answer:
D
Step-by-step explanation:
D is y = -16
x = -2
-16 = 8 ( -2 )
-16 = -16
Mario took clothes to the cleaners three times last month. first, he brought 3 shorts and 1pair of slacks and $10.96. then, he brought 7 shirts, 2 pairs of slacks, and a sports coat and paid $30.40. finally, he brought 4 shirts and 1 sports coat and paid$14.45. How much was he charged for each shirt, each pair of slacks, and each sports coat.
Each shirt costs approximately $0.66, each pair of slacks costs approximately $8.97, and each sports coat costs approximately $11.80.
Explanation:To find the cost of each item, we need to solve a system of equations. Let x be the cost of each shirt, y be the cost of each pair of slacks, and z be the cost of each sports coat. From the given information, we can set up the following equations:
3x + y = 10.96
7x + 2y + z = 30.40
4x + z = 14.45
Now, we can solve the system of equations using any method of our choice. Let's use the method of substitution:
From equation 1, we can solve for y: y = 10.96 - 3x.
Substituting this value of y into equation 2, we get: 7x + 2(10.96 - 3x) + z = 30.40.
Simplifying and rearranging this equation gives us: -5x + z = 8.48.
Now, we can solve for z in terms of x from equation 3: z = 14.45 - 4x.
Substituting this value of z into the equation we obtained earlier, we get: -5x + (14.45 - 4x) = 8.48.
Simplifying and rearranging this equation gives us: -9x + 14.45 = 8.48.
Now, we can solve for x:
-9x = 8.48 - 14.45
-9x = -5.97
x = -5.97 / -9
x = 0.6633
Therefore, each shirt costs approximately $0.66.
Now that we know the value of x, we can substitute it back into equation 3 to find the cost of each sports coat:
z = 14.45 - 4(0.6633)
z = 14.45 - 2.6532
z = 11.7968
Therefore, each sports coat costs approximately $11.80.
Finally, we can substitute the values of x and z into equation 1 to find the cost of each pair of slacks:
3(0.6633) + y = 10.96
1.99 + y = 10.96
y = 10.96 - 1.99
y = 8.97
Therefore, each pair of slacks costs approximately $8.97.
What two facts can you double to find 8 times 4
Which of the following would be a reasonable estimate for the height of a skyscraper?
A.
1 × 103 feet
B.
1 × 108 feet
C.
1 × 10-8 feet
D.
1 × 10-3 feet
A reasonable estimate for the height of a skyscraper is A. 1 x 10^3 feet, as it translates to 1,000 feet which is within the typical range for skyscrapers.
The reasonable estimate for the height of a skyscraper would be A. 1 x 10^3 feet. Option B is incredibly too high as no building is 1 x 10^8 feet tall. Option C and D are also incorrect as they represent very small sizes that are practically negligible and certainly not suitable for a building. A height of 1 x 10^3 feet is a reasonable approximation because it equates to 1,000 feet, which is well within the range of normal skyscrapers.
Which symbol replaces ? to make the statement true?
4⋅16−16 ? 4⋅[24−2⋅(4+8)]
A.>
B.<
C.=
Answer:
a
Step-by-step explanation:
k12
which property is shown (18+(-25))+100=18+(-25+100)
|-3|-2 ³ + 1/3 ÷ 1/6- 2 × 1/2 - (√4 -6 ÷2)
What is the value of x? show your work
Answer:
The value of x is 7.
Step-by-step explanation:
I got it correct, trust me.
On a chess board, 32 of the squares are white. At the start of a game, the players cover 16 white squares of the board with pieces. In simplest form, what fraction of the white squares has chess pieces?
Half of the white squares on a chess board have pieces on them at the start of a game. This is represented by the simplified fraction 1/2.
To calculate what fraction of the white squares on a chess board has chess pieces at the start of the game, you start by considering the total number of white squares. A chess board consists of 64 squares, half of which are white, giving us a total of 32 white squares. At the start, 16 white squares are covered with pieces. Therefore, the fraction of white squares that have chess pieces is 16 out of 32 (16/32).
To simplify this fraction, you look for the greatest common divisor of both the numerator and the denominator. In this case, both 16 and 32 are divisible by 16. After simplifying, 16 divided by 16 gives you 1, and 32 divided by 16 gives you 2, so the simplest form of the fraction is 1/2.
a scrapbook has 4 pages. there are 2 stickers on each page. how many stickers are there
there are stickers total
How do you estimate 92% of 104
what is 4 7/8 as a improper fraction
PLESE HELP Paul is gathering data about moss growth in a local forest. He measured an area of 11 square centimeters on one particular tree and will come back in 6 months to measure the growth of the moss. If the area covered by moss multiplies by one and a half times each month, approximately how much area will the moss cover when Paul returns
14.7 cm2
99.1 cm2
125.3 cm2
16.5 cm2
Answer:
Step-by-step explanation:
Alright, lets get started.
Using the formula for exponential growth,
[tex]y=a(1+r)^x[/tex]
r is given s 1.5 times means the growth rate is 50% growth means r = 0.5
[tex]y=11(1+0.5)^6[/tex]
[tex]y=11*1.5^6[/tex]
[tex]y=11*11.390625[/tex]
[tex]y=125.296875[/tex]
[tex]y=125.30[/tex]
So, the area moss will cover is 125.30 square cm : Answer
Hope it will help :)
Answer:
the answer is c 125.3
You work 40 hours a week at a furniture store. You receive a $250 weekly salary, plus a 5% commission on sales over $2000. Assume that you sell enough this week to get the commission. Given the functions f(x) = 0.05x and g(x) = x - 2000, which of the following represents your commission?
Maria and Edwin have $23.00 each to spend at a book fair, where all students receive a 25% discount. They both want to purchase a copy of the same book, which normally sells for $26.50 plus 10% sales tax. To check if she has enough to purchase the book, Maria takes 25% of $26.50 and subtracts that amount from the normal price. She takes 10% of the discounted selling price and adds it back to find the purchase amount. Edwin takes 75% of the normal purchase price and then computes 110% of the reduced price. Is Maria correct? Is Edwin correct? Do they have enough money to purchase the book? Explain your answer using complete sentences, and show your work.
Help Me
@SignoraPenguino
Answer:
Step-by-step explanation:
They are both correct, the only difference is Maria did a two step process and Edwin did a one step process the total amount it would cost is $21.87 with $1.13 left over.
The way Maria calculates the final price of the book is correct. We know that the book normally sells for $26.50 plus a 10% sales tax. We also know that the students will receive an additional 25% discount. We must understand that the sales tax is applied to the discounted price. So first we will calculate 25% of 26.50 and subtract it from that amount. So the price will then be: (26.50 - 6.625). The price is now $18.34. Then to calculate the tax, it will be (10% * 18.34), so 1.834. We add this amount to the discounted price so: (18.34+1.834) = 20.12.
The final price of the book is $20.12 and Maria can get it and still save a little money.
your welcome
3/5x-15=6/5x+12
Please solve
Thank u soo muc
The fraction 26/5 is between which two numbers?
2 and 3
3 and 4
4 and 5
5 and 6
simplify (39x+54y)+(46x-28y)
These problems they are very har
Alex has 7 pizzas he wants to share equally with 10 friends. How much pizza will each friend receive?
Alex will give each of his friends 7/10 or 0.7 of a pizza when he divides 7 pizzas equally among 10 friends.
Alex has 7 pizzas and wants to share them equally with 10 friends. To find out how much pizza each friend will receive, we can set up a division problem: . This means each person gets 7/10 of a pizza.
Using fractional parts as one method, we can visualize slicing each pizza into 10 equal parts and each friend getting 7 of those slices. Therefore, each person ends up with 7 slices, where each slice is 1/10 of a whole pizza. Hence, every friend gets 7/10 or 0.7 of a pizza when it is divided equally.
Each friend will get 7 tenths of a pizza, or more practically, each friend will receive 0.7 of a pizza.
To solve the problem, we need to divide the total number of pizzas Alex has by the number of friends he wants to share them with.
Alex has 7 pizzas, and he wants to share them equally with 10 friends.
The division of pizzas per friend can be represented by the fraction:
[tex]\[ \text{Pizzas per friend} = \frac{\text{Total pizzas}}{\text{Number of friends}} \][/tex]
[tex]\[ \text{Pizzas per friend} = \frac{7}{10} \][/tex]
[tex]\text{Pizzas per friend} = 0.7[/tex]
Plz Help! :)
Which ordered pairs lie on the graph of the exponential function
f(x) = 3(1/4)^x
Select each correct answer.
A. (−2,48)
B. (0,3)
C. (2,3/16)
D. (12,0)
Answer:
A. (−2,48) B. (0,3) C. (2,3/16) Step-by-step explanation:
The given function is
[tex]f(x)=3(\frac{1}{4} )^{x}[/tex]
To find those ordered pairs that lie on the graph, we need to evaluate each of them
A. (−2,48)
[tex]f(-2)=3(\frac{1}{4} )^{-2}=3(4)^{2}=3(16)=48[/tex]
This pair lies on the graph.
B. (0,3)
[tex]f(0)=3(\frac{1}{4} )^{0}=3(1)=3[/tex]
This pair lies on the graph.
C. (2,3/16)
[tex]f(2)=3(\frac{1}{4} )^{2}=3(\frac{1}{16} )=\frac{3}{16}[/tex]
This pair also lies on the graph.
D. (12,0)
[tex]f(12)=3(\frac{1}{4} )^{12}=\frac{3}{16,777,216}[/tex]
This pair doesn't lie on the graph, because it doesn't satisfy the exponential function.
Therefore, the right asnwer are A, B and C.
When finding 433 - 249 using place value. What do you subtract first?
Final answer:
To subtract 433 - 249 using place value, start with the units place, proceed to the tens, and then the hundreds, borrowing as needed.
Explanation:
When finding 433 - 249 using place value, you should subtract starting with the rightmost digits, which are the units, and proceed to the left towards higher place values such as tens and hundreds, if necessary. This means you subtract the ones place first (3 - 9), then the tens place (3 - 4), and finally the hundreds place (4 - 2), borrowing from the next higher place value whenever the top digit is smaller than the bottom digit.
What is the distributive property of 48 + 72?
Answer:
12(4+6)
Explanation:
To write a problem using the distributive property, we must find a factor they have in common.
48 and 72 are both divisible by 12; this means that we can "pull out" 12. This will be what we multiply by in the distributive property.
48/12 = 4 and 72/12 = 6; this means this is what goes inside parentheses. This gives us
12(4+6)
The distributive property is expressed as 24 (2 + 3) = 24(2) + 24(3)
The distributive property is a property of multiplication used in addition and subtraction. In our case it is used in addition.
The property can be express mathematically as follows.
a(b + c) = ab + acTherefore,
lets find the factor of 48 and 72 to represent the distributive property.
24 (2 + 3) = 24(2) + 24(3)check here for more information: https://brainly.com/question/2152148?referrer=searchResults
There are 24 students in Mrs.Perimeter.If 87 1/2% of them passed their mathematics test,how many students did not pass?
Need help with 14 and 15 plz due tonight
2/5 ab What are the factors of the expression? Drag all of the factors of the expression into the box.
Write a real-life problem that involves dividing a decimal by a whole number
A real-life problem that involves dividing a decimal by a whole number is calculating the average score of a student in a class.
Explanation:A real-life problem that involves dividing a decimal by a whole number is calculating the average score of a student in a class. For example, if a student scores 85.4, 72.6, 90.2, and 65.3 on four tests, we can divide the sum of these scores (313.5) by the total number of tests (4) to find the average score (78.375). This demonstrates the division of a decimal (313.5) by a whole number (4) to find a real-life result.
enya exchanges $200 for euros (€). Suppose the conversion rate is €1 = $1.321. How many euros should Kenya receive? (1 point) €264.20 €151.40 €132.10 €66.05
Answer:
151.40 E
:[tex]\frac{x200}{1} *\frac{y1}{x1.321} =\frac{y200}{1.321}[/tex]
X=$
Y=E
Simplify and you get 151.40Y or E
Multiply.
14⋅25
Express your answer in simplest form.
110
29
320
13
PLEASE HELP ME WILL GIVE BRIALLIST ASAP PLEASE!!!!
Which number can be classified as a terminating decimal number?
0.491
0.1257…
none of the above