3 years ago

If the ratio of 7 less than a number and 7 more than the number 2, what is the number?

Mathematics

1 answer:

snow_lady [41]3 years ago

5 0

Answer:

Step-by-step explanation:

I assume you mean "if the ratio of 7 less than a number and 7 more than the number is 2".

Let x be the number.

Ratio is division.

(x-7)/(x+7)=2

Multiply by (x+7) on each side:

x-7=2(x+7) = 2x+14

Add 7 on each side

x=2x+21

Subtract 2

-x=21

x=-21

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Select the correct answer. if f(x) = x^1/2– x and g(x) = 2x^3 –x^1/2-x find f(x) – g(x).

Igoryamba

f(x) - g(x) = $-2x^{3}+2x^{1/2}$

Step-by-step explanation:

Given :

f(x) = $x^{1/2} -x$
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3 years ago

The sum of the first three terms of A.P is 18 if the first term is 4 find their product

Nataly_w [17]

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Step-by-step explanation:

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