Question

brittanys mom gave her $15.00 to buy school supplies. brittany needs to buy 3 notebooks and some mechanical pencils. if each notebook costs $2.99 and each mechanical pencil costs $1.50, how many mechanical pencils can brittany buy using only the money her mom gave her? 2 pencils 3 pencils 4 pencils 5 pencils

Explanation:

Step1: Calculate cost of notebooks

Cost of 3 notebooks: \(3\times2.99 = 8.97\) dollars.

Step2: Calculate remaining money

Remaining money: \(15 - 8.97=6.03\) dollars.

Step3: Calculate number of pencils

Number of pencils \(n=\frac{6.03}{1.50}=4.02\). Since we can't buy a fraction of a pencil, we take the integer part.

Answer:

4 pencils