Предмет: Математика, автор: kartoshkalala

Длина прямоугольника равна 32 см.

Как изменится его площадь, если его ширину:

а) уменьшить на 5 см

б) увеличить на 3 см

в) уменьшить в 0,5 раза?

Помогите прошу! СПАСИБО ОГРОМЕНОЕ ЗАРАНЕЕ!

Ответы

Автор ответа: DramaSoul
4

a) 32(x-5) = 32x-160 Уменьшится на 160

б) 32(x+3) = 32x + 96 Увеличиться на 96

в) 32(x*0.5) = 16x Увеличится в 2 раза


kartoshkalala: с пасибо!!!!!!!!!!!!
kartoshkalala: оки
kartoshkalala: я знаю
kartoshkalala: но меня нету пока короны
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