Justin has only nickels and quarters in his piggy bank he’s 49 coins total for combined value of $8.85 how many of each type of
coin does he have
1 answer:
17 nickels and 32 quarter.
Here's my work!
x = nickels
y = quarters
x + y = 49
.05x + .25y = 8.85
x + y = 49. = y= -x + 49
.05x +.25( -x + 49 ) = 8.85
.05x + -.25x + 12.25 = 8.85
-.2x + 12.25 = 8.85
- 12.25. -12.25
-.2x = -3.4
÷-.2x. ÷-.2x
x=17
x + y = 49
17 + y = 49
-17. -17
y=32
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