Question 1200567
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Answers:
<font color=red>225 nickels
75 dimes
85 quarters</font>


Work Shown:


d = number of dimes
3d = number of nickels
d+10 = number of quarters


10d = value of the dimes (cents)
5(3d) = 15d = value of the nickels (cents)
25(d+10) = 25d+250 = value of the quarters (cents)


10d+15d+(25d+250) = 4000 cents aka $40
50d+250 = 4000
50d = 4000-250
50d = 3750
d = 3750/50
d = <font color=red>75 dimes</font>
3d = 3*75 = <font color=red>225 nickels</font>
d+10 = 75+10 = <font color=red>85 quarters</font>


Check:
225 nickels = 225*5 = 1125 cents = $11.25
75 dimes = 75*10 = 750 cents = $7.50
85 quarters = 85*25 = 2125 cents = $21.25
total = $11.25+$7.50+$21.25 = $40
The answers are confirmed.
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