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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 :

Solnvictus
40 x $8.20 = $328

$387 - $328 = $59

$59 ÷ $2.95 = 20 calculators

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