The number y is 1 less than 5 times another number x. Their sum is 29.
3 answers
Bob has 37 coins totaling $2.75 . If he only has dimes and nickels, how many of each coin does he have?
y = 5 x - 1
y = 29 - x
------------ subtract
0 = 6 x - 30
x = 5
y = 24
y = 29 - x
------------ subtract
0 = 6 x - 30
x = 5
y = 24
d + n = 37 ( so d = 37 - n)
10 d + 5 n = 275
10 (37-n) + 5 n = 275
370 - 10 n + 5 n = 275
95 = 5 n
n = 19
d =37 - 19
10 d + 5 n = 275
10 (37-n) + 5 n = 275
370 - 10 n + 5 n = 275
95 = 5 n
n = 19
d =37 - 19
1 answer