Using the formula P = 2(a + b), find a when P = 15 and b = 5.

Using the formula P = 2(a + b), find a when P = 15 and b = 5.

Hey! We 've verified this expert answer for you, click below to unlock the details :)

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

Help, I will best answer, this is the hardest question to me..

substitute 15 for P and 5 for b
15 = 2(a+5)
divide both sides by 2 and subtract 5 to isolate a

so, it would be 2.5?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

Looking for something else?

Not the answer you are looking for? Search for more explanations.