3 years ago

If m(x)=2x and n(x)=x-4 find the general rule for m(n(x))

1 answer:

4 0

$m(n(x))=2(x-4)=2x-8$

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likoan [24]

Answer:

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Step-by-step explanation:

let n be the larger number , then $\frac{1}{4}$ n is the smaller number and their sum is

x + $\frac{1}{4}$ x = 60 ( multiply through by 4 to clear the fraction )

4x + x = 240 , that is

5x = 240 ( divide both sides by 5 )

x = 48

smaller number = $\frac{1}{4}$ × 48 = 12

The 2 numbers are 12 and 48

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