Answers:
Nora = $40
Sara = $55
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Work Shown:
n = amount Nora earned
s = amount Sara earned
n+s = 95 .... total amount earned
s = n+15 .... since Sara earned $15 more than Nora
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I'll use the substitution method to solve.
n+s = 95
n+n+15 = 95 ....... replaced "s" with n+15
2n+15 = 95
2n = 95-15
2n = 80
n = 80/2
n = 40 dollars is the amount Nora earned
s = n+15
s = 40+15
s = 55 dollars is the amount Sara earned
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Check:
Nora+Sara = 40+55 = 95 dollars total earned
This confirms the answer. Also, we can see that Sara earned $15 more than Nora to help further confirm the answer.