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M4 Lesson 20 Exit Ticketcharges $30 per hour to best complete the table, and answer the questions belowAmernt Anna Changes in Dollars5

M4 Lesson 20 Exit Ticketcharges $30 per hour to best complete the table, and answer-example-1
User PeteAC
by
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1 Answer

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19 votes

1) Looking at the first table, we can see that this is a proportional relationship given by y=8.5x

So Anna charges:

Number of hours (x) | Amount (y)

1 8.5

2 17

5 42.5

8 68

11 93.5

a) The expression for her earnings in 11 hours:

y=8.5(11) ⇒ y = 68

$68

b) She'll earn $29.75. We can get it by plugging into that formula.

3 1/2 = 3.5

y= 8.5(3.5)

y=29.75

$29.75

c) To know how long, we plug 51 for y. Since x is for hours.

y=8.5x

51=8.5x Divide both sides by 8.5

x=6

She'll take 6 hours to get $51.00 working as a baby sitter.

User Tony Vitabile
by
2.7k points
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