thefootballman1115
22.09.2019 •
Mathematics
They are 100 questions on the math test salad answered 88 of those questions correctly what percent did she get correct on the test
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Ответ:
Ответ:
x=14
y=37
Step-by-step explanation:
9x+12+3x=180
12x+12=180
-12 -12
12x=168
divide both sides by 12 and
x=14
then plug in 3(14)+4y-10=180
42+4y-10=180
32+4y=180
4y=148
y=37