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The expression
20 l+25 g-10 gives the number of dollars that Josie makes from mowing
l lawns and raking
g gardens. How many dollars does Josie make from raking 4 gardens and mowing 3 lawns?

The expression $20 l+25 g-10$ gives the number of dollars that Josie makes from mowing $l$ lawns and raking $g$ gardens. How many dollars does Josie make from raking $4$ gardens and mowing $3$ lawns?

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Write linear functions: word problems

Full solution

Q. The expression

20 l+25 g-10

gives the number of dollars that Josie makes from mowing

l

lawns and raking

g

gardens. How many dollars does Josie make from raking

4

gardens and mowing

3

lawns?

Given Expression: We are given the expression $20l + 25g - 10$ , where $l$ represents the number of lawns mowed and $g$ represents the number of gardens raked. We need to calculate the total amount of money Josie makes for raking $4$ gardens and mowing $3$ lawns.
Substitute Numbers: Substitute the given numbers of lawns and gardens into the expression. Here, $l = 3$ and $g = 4$ .
Total amount = $20l + 25g - 10$
Total amount = $20(3) + 25(4) - 10$
Perform Multiplication: Perform the multiplication for each term. $\newline$ Total amount = $(20 \times 3) + (25 \times 4) - 10$ $\newline$ Total amount = $60 + 100 - 10$
Add and Subtract: Add and subtract the numbers to find the total amount. $\newline$ Total amount = $60 + 100 - 10$ $\newline$ Total amount = $160 - 10$ $\newline$ Total amount = $150$

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