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Bond [772]
3 years ago
15

3) Kelsey ran 1.9 miles on Tuesday. On Saturday she ran twice as much. How

Mathematics
2 answers:
xxTIMURxx [149]3 years ago
6 0

Answer:

5.7 miles

Step-by-step explanation:

1.9*2 = 3.8

She ran 3.8 miles on the second day

1.9 + 3.8 = 5.7

She ran 5.7 miles in total

sweet-ann [11.9K]3 years ago
5 0

Answer:

5.7

Step-by-step explanation:

1.9 x 2 = 3.8 + 1.9 = 5.7

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As per the direct variation formula, it take  11 hours : 6 minutes : 36 seconds to earn $25,000 for the restaurant.

Direct variation:

Direct Variation is said to be the relationship between two variables in which one is a constant multiple of the other.

Direct variation equation: y = kx

Given,

A local fast food restaurant takes in $9000 in a 4 hours period. Write a direct variation equation for the relationship income and number of hours.

Here we need to estimate how many hours it would take the restaurant to earn $25,000.

a) Let us consider income (I) directly varies to number of hours (h) where k is the constant of variation.

I = kh   ⇒  Direct variation equation

Solve for k:

9,000 = (k)(4)

k = 9,000/4

k = 2,250

b) When income (I) = 25,000, find the number of hours:

I = kh

25,000 = (2,250) (h)

h = 25,000/2,250

h = 11.11

It will take approximately 11 hours : 6 minutes : 36 seconds for the restaurant to earn $25,000.

To know more about Direct variation here.

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1 year ago
The profit earned by a hot dog stand is a linear function of the number of hot dogs sold. It costs the owner $48 dollars each mo
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Answer:

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