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4 years ago

5x−3−7x = 15−x What is x?

2 answers:

6 0

Simplify 5x-3-7 to -2x-3
-2x-3=15-x
Add 2x on both sides
−3=15−x+2x
Simplify 15-x+2x to 15+x
−3=15+x
Subtract 15 on both sides
-3-15=x
Simplify -3-15 to -18
-18=x
X=-18

Mamont248 [21]4 years ago

4 0

Answer:

Step-by-step explanation:

$5x - 3 - 7x = 15 - x \\ collect \: like \: terms \: \\ 5x - 7x + x = 15 + 3 \\ - x = 18$

$\frac{ - x}{ - 1} = \frac{18}{ - 1} \\ x = - 18$

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3 years ago

What is the multiplicative rate of change of the exponential function shown on the graph? 1 4

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The answer:
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3 years ago

Work out the area of this circle.

mylen [45]

→Answer:

$50.3cm^2$

→Step-by-step explanation:

Well the formula for the area of a circle is $\pi r^2$ .

<u><em>→Given information</em></u>

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answer must be rounded to the nearest tenth

____________________________________________________________

So now we have to plug in the given information into the following formula $\pi r^2$ .

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__________________I do hope this helps!__________________________

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