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erikasee3535
17.09.2019 •
Mathematics
Solve the system using the substitution method
y= -3x + 16
2x - 3y = -4
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Ответ:
x=4
y=4
Step-by-step explanation:
y=-3x+16
2x-3(-3x+16)=-4
2x+9x-48=-4
11x= 44
x=44/11
x= 4
y=-3x+16
y=-(3×4)+16
y=-12+16
y=4
Ответ:
When we are writing a ratio or fraction, we are comparing two different quantities.
Imagine that a track athlete has to run 3 miles for every day of practice. We could write the ratio 3:1.
Imagine that your parents are going to pay you $15 for every A on your report card. We could write the ratio 15:1
The key words are "For Every".