maddyrose814
19.03.2021 •
Mathematics
PLEASE HELP ME
Locksmith Larry charges a flat fee of $20 for a house call, plus $25 per hour. Which of the following displays a one-variable function that describes how much Locksmith Larry charges?
A. f(x) = 20x + 25
B. f(x) = 25x
C. f(x) = 25x + 20
D. f(x) = 20x + 5
Solved
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Ответ:
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Ответ:
18/a=7
Multiply both sides by a
18=7a
Then divide both sides by 7
18/7=a
Final B