1. Jane saved up 20 coins, all nickels and quarters, and when she counted it, she had
$3.00. How many nickels and how many
quarters did she have?
Let
Let
Equation:
Equation:
Sentence:

10 nickels and 10 quarters

Step-by-step explanation:

Given

Number of coins: 20

Vaiue of coins = $3.00

Required

Number of Nickels and Quarters;

Let N =Nickels and Q =Quarters

The total coins is represented as:

1 nickel is equivalent to $0.05 and 1 quarter is equivalent to $0.25; So

Make N the subject of formula in the first equation

Substitute this in the second equation

Collect like terms

Multiply both sides by 5

Recall that N = 20 - Q

Step-by-step explanation:

Replace x

x=-y+21

2(-y+21)-15=y

Then solve the rest