Here is your answer:
Need to divide the amount he wants to the amount he gets every hour:
116.25÷7.50=15.5 hours
Which mean he has to work 15 and a half hours
Your answer is...
15.5 or if rounded 16 hours!
Hope this Helps!
N=8+d
10d+5n=145
divide 2nd equaiton by 5 to make nicer and easier
2d+n=29
subsitute 8+d for n in 2nd equation
2d+8+d=29
3d+8=29
minus 8 both sides
3d=21
divide by 3
d=7
sub back
n=8+d
n=8+7
n=15
15 nickles and 7 dimes
I really don’t remember how to do these
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