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Popolare Word Problems >

The differenza between three times a number and six is thirty. What is twice the number?

Soluzione

T h e d i ff ere n ce b e tw ee n t h ree t im es a n u mb er an d s i x i s t hi r t y . Wha t i s tw i ce t h e n u mb er ?

Soluzione

twice the number : 24

Fasi della soluzione

Represent the number with

x

A.T.Q.:

3 x - 6 = 30

Risolvi per

x, 3 x - 6 = 30 : x = 12

2 x = 2 \cdot 12 = 24

twice the number : 24

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