Question

Write an equation and solve it to answer each question:

A pile of 55 coins, consisting of nickels and dimes, is worth $3.90. find the number of each.

You have to Answer like this:
If there are x nickels, then the equation is______
The number of nickels is_____
the number of dimes is______

Answer 1

If there are x nickels then the equation is

.05x+.10(55-x)=3.9

The number of nickels is 32

And the number of dimes is 23

Explanation:

This is because there are x amount of nickels and the value of a nickel is .05

Plus the dime which is .10 cents hence .10x.

But there are 55 of them so out of the dimes we subtract 55 out of it to have the nickels and the total value is 3.9

I know that was a really bad explanation but hope this helps?

Answer 2

there are 25 nickels and 30 dimes