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gavmur [86]
3 years ago
5

Write and solve a proportion to answer the question. What number a is 70% of 70

Mathematics
1 answer:
MissTica3 years ago
7 0
Percent means parts out of 100
so 70%=70/100


'of' means multiply


we can do
\frac{x}{70}=\frac{70}{100}
that's the prooprtion

solving
\frac{x}{70}=\frac{70}{100}
\frac{x}{70}=\frac{7}{10}
times both sides by 70
x=\frac{490}{10}
x=49

the number is 49
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Solution: (-9,-6)
----
Check: 
-9=-6-3
-9=-9
TRUE


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