rigobertogarza2
16.06.2021 •
Mathematics
Help pls!! I don’t get this
Solved
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Ответ:
I don't know.
Step-by-step explanation:
?
Ответ:
1.65x + 1.36y = $118.17
step 1: x + y = 79
- x - x
y = 79 - x
step 2: 1.65x + 1.36 ( 79 - x) = 118.17
1.65x + 107.44 - 1.36x = 118.17
0.29x + 107.44 = 118.17
- 107.44 - 107.44
0.29x = 10.73
0.29x 0.29x
x = 37
step 3: 37 + y = 79
- 37 - 37
y = 42
final answer: (37, 42)