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If ab+3ac=48 and 10b+30c=80 find a

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If ab+3ac=48 and 10b+30c=80 find a

asked Aug 9, 2019 165k views

1 vote

If ab+3ac=48 and 10b+30c=80 find a

Mathematics
middle-school

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1 Answer

5 votes

ab + 3ac = 48

10b+30c=80

b=8 - 3c

a(8-3c) + 3ac = 48

8a - 3ac + 3ac = 48

8a = 48

a=48/8

hope that helps

SamAko answered Aug 15, 2019

by SamAko

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