Question 165228
Let n be the number of nickels and d dimes.
A) .05n+.10d=4.75
B) .10n+.05d=3.50
.
A) .05n+.10d=4.75
B)-.20n-.10d=-7.00 multiply each side by -2
---------------------add
==>-.15n=-2.25
n=15
d=40
.
Ed