Coin Question

[Guest]

marina has a bank of of pennies and nickels, if the peenies were nickels and the nickels were pennies, she would have exactly \$1 more, if the total value of the money in her bank is \$1.75, how many pennies does she have?

[Baltuilhe]

Good afternoon!!

0,01x+0,05x=1,75
0,05x+0,01y=2,75

Solve and get:
x=50
y=25

So, 25 pennies!

[Baltuilhe]

Fixing the answer:
x = pennies
y = nickels

so... 50 pennies and 25 nickels