Question

Bob has $1.15 in his wallet which contains 18 coins in nickels and dimes. Find how many nickles he has.​

Answer 1

well... if we don't know how many dimes then we can only guess how many nickels... since it is nickelS AND dimeS, it could be anything from 14 nickels and 2 dimes to 2 nickels and 17 dimes

Explanation:

Answer 2

9514 1404 393

Answer:

13 nickels

Explanation:

Let n represent the number of nickels Bob has. Then 18-n is the number of dimes, and the total value (in cents) is ...

5n +10(18-n) = 115

-5n +180 = 115 . . . simplify

65 = 5n . . . . . add 5n-115

13 = n . . . . . . . divide by 5

Bob has 13 nickels.