Solve 3x+2y=5 and 7x+2y=9
1 answer:
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Answer:
$15 for a lawn, $105 for seven lawns.
Step-by-step explanation:
The question is about the direct ratio problem. Logically, you will earn more if you mow more lawn.
The scheme for this ratio is given below:
15 n_________n lawns
x_________ 1 lawn
You will earn 15 dollars for mowing a lawn
When you mow 7 lawns, the scheme will be in this manner:
15 n__________n lawns
x__________7 lawns
You will earn 105 dollars
A. (1, 0) and (–6, –28)
B. (1, 20) and (6, 0)
C. (1, 0) and (6, 20)
D. no solution
Correct answer is C.