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27-04-2017
Mathematics

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kelsis mom, sue is eight times as old as kelsi. in 10 years, sue will be three times as old as kelsi. how old are kelsi and sue now?

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TheMaster999 TheMaster999

27-04-2017

Sue's age=x
Kelsi's age=y

{x=8y
{x+10=3(y+10)

{x=8y
{x+10=3y+30

{x=8y
{x-3y=20

8y-3y=20
5y=20
y=4

x=8y
x=8*4
x=24

{x=24
{y=4

Regards M.Y.

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