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Laura bought a notebook and a pencil for $4.50. The notebook cost twice the amount of the pencil. On your worksheet, solve the question and write your answer below. . How much was the pencil and how much was the notebook

User JohnMudd
by
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2 Answers

9 votes

Answer:

Pencil: $1.50

Notebook: $3

Explanation:

n = cost of notebook

p = cost of pencil

n + p = 4.5

n = 2p

substitute n into the first equation

2p + p = 4.5

3p = 4.5

p = 1.5

n = 2p

n = 2(1.5)

n = 3

User Nerowolfe
by
9.0k points
13 votes

Answer:

n+p=4.50

n=2p

2p+p=4.5

2p=4.5

p=$1.5

n=$3

Explanation:

User Jakejgordon
by
8.8k points

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