aunghtikehtike72 aunghtikehtike72
  • 08-06-2019
  • Chemistry
contestada

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?​

Respuesta :

Tweezay13 Tweezay13
  • 08-06-2019

Answer: 20

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

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