Last week, the price of oranges at the farmer’s market was 1.75 per pound. This week, the price has decreased by 20%. What is the price of oranges this week? Use the double number line to find your answer.

פתרון

L a s t w ee k, t h e p r i ce o f or an g es a t t h e f a r m er ’ s ma r k e t w a s 1.75 p er p o u n d . T hi s w ee k, t h e p r i ce ha s d ecre a se d b y 20%. Wha t i s t h e p r i ce o f or an g es t hi s w ee k ? U se t h e d o u b l e n u mb er l in e t o f in d yo u r an s w er .

Amount after reduction : 1.4

צעדי פתרון

Translate the problem into an equation:

x = 1.75 - 0.2 \cdot 1.75

x = 1.75 - 0.2 \cdot 1.75 : x = 1.4

Amount after reduction : 1.4