Question

Which system describes the following situation? Craig has 80 cents in nickels and dimes. He has

four more nickels than dimes.
Od+n=4 and 10d + 5n = 80
On-d=4 and 10d + 5n = 80
Od+n=4 and 10d - 5n = 80
O d-n=4 and 10d + 5n = 80

Answer 1

The correct system that describes the situation is:

Od+n=4 and 10d + 5n = 80

This is because the problem states that Craig has four more nickels than dimes, which can be represented as Od+n=4. The problem also states that he has 80 cents in total, which can be represented as 10d + 5n = 80.