Kelly is painting her bedroom wall.she paints 1/3 of the wall in 3/5 of an hour. What is her rate per hour

Mathematics

1 answer:

il63 [147K]2 years ago

4 0

Answer:

The answer is 5/9

Step-by-step explanation:

It is 5/9 because you have to do cross multiplication, 3 times 3 is 9 which will be the dominator and 5 times 1 which is 5 and the numerator. Hope this helped please mark brainliest.

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5(y+a)=x <br> make y the subject of the equation

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Answer:

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First, set up variables for each runner to calculate the time:
x = faster runner
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2x^2-3x-2=0 zero product property

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$2x^2-3x-2=0 \\
2x^2-4x+x-2=0 \\
2x(x-2)+1(x-2)=0 \\
(2x+1)(x-2)=0 \\
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2x=-1 \ \lor \ x=2 \\
x=-\frac{1}{2} \ \lor \ x=2 \\
\boxed{x=-\frac{1}{2} \hbox{ or } x=2}$