Question

Exercise 2

1. A maths teacher bought 40 calculators at $8.20 each and a number
of other calculators costing $2.95 each. In all she spent $387.
How many of the cheaper calculators did she buy?​

Answer 1

Answer: 20

Step-by-step explanation:

40($8.20)+X($2.95)=$387.00

$328+$2.95X=$387.00

$2.95X=$59.00

X=$59.00/$2.95=20

X=20 calculators