I need help...........................................Im very sorry

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asked Dec 23, 2019 32.1k views

1 Answer

Todd Freed · Answer 1 · 2019-12-28T10:28:56+0000

c = Charmaine's age.

w = William's age.

"William is 3 years older than Charmaine" w = c + 3.

"3 times Charmaine's age" 3c.
"2 times William's age" 2w.

"sum of both of those is 76" 3c + 2w = 76

$\bf \begin{cases} \boxed{w}=c+3\\ 3c+2w=76\\ --------\\ 3c+2\left( \boxed{c+3} \right)=76 \end{cases} \\\\\\ 3c+2c+6=76\implies 5c=70\implies c=\cfrac{70}{5}\implies c=14$

how old is William? well, w = c + 3.

I need help...........................................Im very sorry

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