Question

5. Jackie has 20 coins (nickels and dimes) in her purse. How many nickels and dimes does she have if

she has $1.45? Write, two equations to represent this situation, then solve demonstrating the substitution
method

Answer 1

9 Dimes and 11 Nickels

Explanation:

1.45= 145

N=5

D=10

D>N

d*9=90

n*11=55

90+55=145

Answer 2

11 nickels and 9 dimes.

Explanation:

11x5=55+(9x10)=55+90=145

145-(11x5)=145-55=90÷10=9

nickels: 11

dimes: 9

11+9=20