Emma has $1.85 in her pockets, all in quarters and nickels. Her father gives her another quarter. She now has the same number of quarters as nickels. How many nickels does Emma have in all

7

Step-by-step explanation:

After the quarter is added, the amount totals $2.10. This consists of groups of two coins, a nickel and a quarter. Each such group is worth $.30, so there must be $2.10/$0.30 = 7 groups.

Emma has 7 nickels, worth $0.35. After her father gave her the quarter, she also had 7 quarters. Before that, she had 6 quarters worth $1.50.