laterianflint laterianflint

19-03-2020
Mathematics

contestada

Given ƒ(x) = −10x + 45, find x when ƒ(x) = 15.

Respuesta :

jimrgrant1 jimrgrant1

19-03-2020

Answer:

x = 3

Step-by-step explanation:

Given

f(x) = - 10x + 45 and f(x) = 15, then equating gives

- 10x + 45 = 15 ( subtract 45 from both sides )

- 10x = - 30 ( divide both sides by - 10 )

x = 3

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