Hannah has $3.10 in her piggy bank in nickels and quarters. if there are 22 coins in her piggy bank, how many are nickels and how many are quarters? explain and show work.

Step-by-step explanation:

we know that

Let

x------> the number of nickel coins

y-----> the number of quarter coins

we know that

-----> equation A

----> multiply by 100 both sides

-----> equation B

Substitute equation A in equation B and solve for y

 ------>

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.

4

step-by-step explanation: