Question 226594
Let  n = # nickles,,,,,,and  q= # quarters
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n= q+4,,,,,,,,,given
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(.05)n + (.25)q = 2.30,,,,,,,given
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subst,,,,(.05)(q+4) + (.25)q = 2.30
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.05q + .20 +.25q =2.30
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.30q = 2.10
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q=7,,,,,,n=7+4 =11
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check,,, .05 *11 + .25*7 = .55+1.75 = 2.30,,,,,,,ok
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