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3 years ago

Factor the expression. 40z – 20

Mathematics

2 answers:

dalvyx [7]3 years ago

8 0

(2 x 5 x 2 x 2 x z) - (2 x 5 x 2)

Phoenix [80]3 years ago

3 0

Answer:

20(2z – 1)

Step-by-step explanation:

Perfect! You were able to find that the greatest common factor is 20. Both 40z and -20 were then divided by 20 to get 2z - 1.

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kondor19780726 [428]

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3 years ago

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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.

Solution:

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

Finding percent of increase in the newspaper’s circulation from 2000 to 2001:

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

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

Finding percent of increase in the newspaper’s circulation from 2001 to 2002:

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

As we can see 12% < 12.6%

So period of 2001 to 2002 has higher increase percentage.

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3 years ago

On the Sharks dive team, there are 3 divers in third grade. There are 8 total divers on the team.

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The original price of the movie would be $26. Hope this helps!

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