9 is what percent of 90?

Mathematics

2 answers:

Marysya12 [62]2 years ago

8 0

9 is 10% of 90

I think this will help you

QveST [7]2 years ago

4 0

10% i believe :)

i hope this helps u!!

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Method 1:

$\dfrac{a}{20}+\dfrac{14}{15}=\dfrac{9}{15}\ \ \ \ |multiply\ both\ sides\ by\ 60\\\\60\cdot\dfrac{a}{20}+60\cdot\dfrac{14}{15}=60\cdot\dfrac{9}{15}\\\\3a+4\cdot14=4\cdot9\\\\3a+56=36\ \ \ \ |subtract\ 56\ from\ both\ sides\\\\3a=-20\ \ \ \ |divide\ both\ sides\ by\ 3\\\\\boxed{a=-\frac{20}{3}\to a=-6\frac{2}{3}}$

Method 2.

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Line q passes through the points (4, 6) and (0,6). What is the equation for the line which is perpendicular to q and passes thro

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Answer:

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Step-by-step explanation:

Line q is the horizontal line y = 6, so the perpendicular line will be vertical. In order for it to go through the point (-2, 3), the equation must be ...

x = -2