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Free_Kalibri [48]
3 years ago
11

Solution for 3/4x - 12 = -18?

Mathematics
2 answers:
Ivanshal [37]3 years ago
8 0

Answer:

x = -8

Step-by-step explanation:

Add 12 on both sides

You get 3/4x = -6

Multiply 4/3 on both sides

You get x = -24/3

Simplify and you get -8.

sergejj [24]3 years ago
8 0

Answer:

x=-8

Step-by-step explanation:

The reason why x is -8 is because

The first step is to isolate the x

To isolate the x you got to add 12 to both sides

\frac{3}{4}x-12+12=-18+12

the -12 gets canceled out by the positive twelve so all thats left now is

\frac{3}{4}x=-18+12,-18+12 is -6 so its  \frac{3}{4}x=-6

The second step is to divide

now you have to divide by \frac{3}{4} on both sides

\frac{\frac{3}{4} x}{\frac{3}4} } =\frac{-6}{\frac{3}{4} }

which \frac{3}{4} is taken out on the left side because its divided by itself so all thats left is a one,while on the right side -6 divided by three-fourths is -8

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In 2000, the circulation of a local newspaper was 3,250. In 2001, its circulation was 3,640. In 2002, the circulation was 4,100.
vodka [1.7K]

Percent increase from 2000 to 2001 is 12% and from 2001 to 2002 is 12.6%. Thus period of 2001 to 2002 has higher increase percentage.

<u>Solution:</u>

Given that,

Total circulation of local newspaper in 2000 = 3250

Total circulation of local newspaper in 2001 = 3640

Total circulation of local newspaper in 2002 = 4100

<em><u>Finding percent of increase in the newspaper’s circulation from 2000 to 2001:</u></em>

\text { Percent increase from } 2000 \text { to } 2001=\frac{\text { change in circulation from 2001 - 2000 }}{\text { circulation in } 2000} \times 100

\begin{array}{l}{=\frac{3640-3250}{3250} \times 100} \\\\ {=\frac{390}{3250} \times 100=12 \%}\end{array}

<em><u>Finding percent of increase in the newspaper’s circulation from 2001 to 2002:</u></em>

\begin{array}{l}{\text { Percent increase from } 2001 \text { to } 2002=\frac{\text { change in circulation }}{\text {circulation in } 2001} \times 100} \\\\ {=\frac{4100-3640}{3640} \times 100} \\\\ {=\frac{460}{3640} \times 100=12.6 \%}\end{array}

As we can see 12% < 12.6%

So period of 2001 to 2002 has higher increase percentage.

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3 years ago
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Step-by-step explanation:

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use proportion

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