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Nita is 10 years older than Joe the sum of their two ages is 20 how old is Joe?
Wiki User
∙ 14y ago
For this question we can say Nita = N and Joe = J and set up an equation:
equation 1: N = J + 10 and equation 2: 20 = J + N
we can solve for J using equation 1 inside of equation 2:
20 = (J + 10) + J
20 - 10 = 2*J
Therefore: J = (20 - 10)/2 = 5
Now we solve for N by plugging in 5 for J in equation 1:
N = 5 + 10 = 15
Nita is 15 and Joe is 5
Wiki User
∙ 14y ago
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