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3 years ago

11

The drummer drove 18 miles to pick up the singer and then another 28 miles to the job. The rest of the band drove 52 miles to th

e job. Who drive futher and how much

1 answer:

Dmitrij [34]3 years ago

6 0

The rest of the band drove more and by 6 miles.

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777dan777 [17]

Answer:

x = 5

Step-by-step explanation:

Step 1: Write equation

5x - 7 = 18

Step 2: Solve for <em>x</em>

Add 7 to both sides: 5x = 25
Divide both sides by 5: x = 5

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

5(5) - 7 = 18

25 - 7 = 18

18 = 18

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zubka84 [21]

Answer:

Solution given:

$f(x)=\frac{x-16}{x^2+6x-40}$

$g(x)=\frac{1}{x+10}$

now

f(x)+g(x)= $\frac{x-16}{x^2+6x-40}+\frac{1}{x+10}$ ....(1)

now

factoring x²+6x-40

we get

x²+10x-4x-40

x(x+10)-4(x+10)

(x+10)(x-4)

now substituting in equation 1 ,we get

f(x)+g(x)= $\frac{x-16}{(x+10)(x-4)}+\frac{1}{x+10}$

taking l.c.m

= $\frac{(x-16)+(x-4)}{(x-10)(x-4)}$

=now

opening bracket

$\frac{x-16+x-4}{x²-10x-4x+40}$

= $\frac{2x-20}{x²+6x-40}$

So

answer is :

B. $\bold b\frac{2x-20}{x^2+6x-40}$

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I'll solve 21, and you then should be able to solve the rest on your own!

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Step-by-step explanation:

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