Question

A teacher purchased 20 calculators and 10 measuring

tapes for her class and paid $495. Later, she realized
that she didn't order enough supplies. She placed
another order of 8 calculators and 1 measuring tape
and paid $178.50.
Write a system that can be used to model this situation

Answer 1

pog

Explanation:

Answer 2

The mathematical system that represents this case is

• 20C + 10M = 495
• 8C + M = 178.50.

To solve this problem

Let C be the price of a single calculator and M be the price of a single measuring tape.

The following equation represents the initial purchase of 20 calculators and 10 measuring tapes: 20C + 10M = 495.

The following equation represents the added order of 8 calculators and 1 measuring tape:

8C + M = 178.50

So, The mathematical system that represents this case is

• 20C + 10M = 495
• 8C + M = 178.50