2 years ago

Sam is determining the area of a triangle. In this triangle, the value for the height is a terminating decimal, and the

1 answer:

dsp732 years ago

5 0

Answer:

The area is rational because the numbers in the formula are rational and the numbers substituted into the formula are rational

Step-by-step explanation:

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If Joanne can paint a room in 3 hours and her sister Angela can paint the same room in 4 hours, how long (in h) would it take Jo

Gala2k [10]

Answer:

Step-by-step explanation:

If J can paint a room in 3 hours, in 1 hour she gets $\frac{1}{3}$ of the job done.

If A can paint a room in 4 hours, in 1 hour she gets $\frac{1}{4}$ of the job done. We need to find out how long it takes them if they paint together. The equation for this is:

$\frac{1}{3}+\frac{1}{4}=\frac{1}{x}$ where x is the number of hours it takes them to get the job done together. Multiply everything through by 12x to get