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MAXImum [283]
2 years ago
9

A. Sarah Smartshopper receives ten cents off per gallon on gas for every $100 she

Mathematics
1 answer:
Wewaii [24]2 years ago
8 0

Using proportions, it is found that her discount is of $0.29664.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount.

In this problem, the total amount she spent on gas is given by:

T = $45.23 + $102.34 + $13.67 + $34.56 + $48.72 + $52.12 = $296.64.

Considering that she receives ten cents off per gallon on gas for every $100 she spends, we apply the <em>proportion </em>to find that her discount is given by:

D = 0.1 \times \frac{296.64}{100} = 0.29664

Her discount is of $0.29664.

More can be learned about proportions at brainly.com/question/24372153

You might be interested in
The mean speed of vehicles along a stretch of highway is 56 mph with a standard deviation of 4 mph. You
Elenna [48]

The corresponding z score for speed of 62 mph, 47 mph, and 56 mph is 1.5, -2.25 and 0 respectively.

<h3>Z score</h3>

Z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

z=\frac{x-\mu}{\sigma }

Where x is raw score, μ is mean, σ is standard deviation

Given that:

σ = 4, μ = 56, hence

for x = 62:

z=\frac{62-56}{4 } =1.5

for x = 47:

z=\frac{47-56}{4 } =-2.25

for x = 56:

z=\frac{56-56}{4 } =0

The corresponding z score for speed of 62 mph, 47 mph, and 56 mph is 1.5, -2.25 and 0 respectively.

Find out more on Z score at: brainly.com/question/25638875

4 0
3 years ago
Write an equation of a line in slope-intercept form given the slope (m) and the y- intercept (b), slope, m= -4/7 y-intercept b =
Leno4ka [110]
The answer is y=-4/7x+7. You simply substitute in the given numbers. -4/7 for the slope (m) and 7 for the y-intercept (b). 
4 0
3 years ago
I solved this answer already and I got 43, but I don’t know if it’s correct so
faltersainse [42]

Answer:

= 43

Step-by-step explanation:

{7 × 2^{3} - 7} -2 ×3

Solve the brackets first

{7 × 8 - 7}  -2 ×3

{56 - 7}  -2 ×3

49  -2 ×3

49 -6

= 43

you are right

8 0
3 years ago
A rectangular garden has a width of 67 inches and a length of 92 inches. What is the perimeter of the garden in feet? Group of a
Archy [21]
The answer is 13.25
67+92= 159
159 divided by 12= 13.25
3 0
3 years ago
What is 1 4/5 as a decimal
Mariulka [41]
Divide 4 by 5. You will get 0.8 . So, your answer will be 1.8 because you already have a whole number, you will add the decimal to the whole number and you would get 1.8 .
6 0
3 years ago
Read 2 more answers
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