P+d= 19 9p+ 5.50d= 150 solve the system of equations , step by step

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Daniel Mohr asked Jan 3, 2023

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P+d= 19 9p+ 5.50d= 150 solve the system of equations , step by step

Mathematics
high-school

Daniel Mohr asked Jan 3, 2023

by Daniel Mohr

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Answer:

d=6 & p=13

Explanation:

1. P+d=19

×9

2. 9p +5.50d=150

×1

9p+9d=171

9p +5.50d=150

3.5d=21

d=6

Substituting d=6 in 1.

P+6=19

P=13

Sam Stern answered Jan 8, 2023

by Sam Stern

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