Question

Keith had $10.

When he bought 5 colored pencils and 3 notebooks at $1.50 per notebook,
the change was $2.
What is the price of 1 colored pencil?​

Answer 1

The price of one colored pencil was $0.70

Explanation:

Let p be the price of 1 colored pencil:

We know he bought 5 colored pencils and 3 notebooks and had 2 dollars left over, meaning he spent 8, so we can write out:

5p + 3(1.5) = 8

That becomes:

5p + 4.5 = 8

Isolate p by moving 4.5 to the right:

5p = 3.5

Divide by 5

p = 0.7

Answer 2

$ 0,70

Explanation:

5 * p + 3 * 1,50 + 2 = 10

5 * p = 10 - 6,5

5 * p = 3,5

p = 0,7