ed spent 8.5% of his savings on lunch,which cost 5.25$. how much did he have in savings before lunch
1 answer:
Just compare fractions.
$5.25/x = 8.5/100
Then multiple both sides by 100 and both sides by x;
525 = 8.5x
Divide both sides by 8.5
x ≈ $61.77
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−7w+8(w+1)=w−7
w+8=w−7
w+8−w=w−7−w8=−7
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15
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