Solve the proportion. Please explain your answer.
3p/7=4/5
2006-11-29 12:49:20 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
3p/7 = 4/5
Multiply both sides times 7
3p/7 * 7 = 4/5 * 7
3p = 28/5
Multiply both sides times 5
3p * 5 = 28/5 * 5
15p = 28
Divide both sides by 15
15p / 15 = 28 / 15
p = 28/15
CHECK YOUR ANSWER
3(28/15) times 5=28
7 times 4=28
it is the correct answer
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2006-11-29 12:55:20 · answer #1 · answered by alba g 1 · 0⤊ 0⤋
PROPORTIONS! I got this:
You cross multiply. So multiply 3p by 5, and multiply 7 by 4. You get 15p=28. Divide both sides by 15. You will get a fraction, or a number with some decimal places.
2006-11-29 20:54:05 · answer #2 · answered by Annie 4 · 0⤊ 0⤋
3p/7 = 4/5
Multiply both sides times 7
3p/7 * 7 = 4/5 * 7
3p = 28/5
Multiply both sides times 5
3p * 5 = 28/5 * 5
15p = 28
Divide both sides by 15
15p / 15 = 28 / 15
p = 28/15
2006-11-29 20:54:30 · answer #3 · answered by Math Helper 3 · 0⤊ 0⤋
multiply both sides by 7 then divide both sides by 3
this will end up
p=(7x(4/5))/3 => p=(28/5)/3=28/15=1.867
2006-11-29 20:55:18 · answer #4 · answered by jdjustice8912 2 · 0⤊ 0⤋
check your math book u should find explanation in ther some where <:
2006-11-29 20:56:26 · answer #5 · answered by linda 1 · 0⤊ 0⤋