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Mathematics

2 answers:

gavmur [86]3 years ago

5 0

Answer:

Step-by-step explanation:

5/12

2/5

Yes they are proportion.

The first one 25/60 means both the 5 and 12 can be multiplied by 5 to get the 25/60.

The second one 8/20 means that both the 2 and 5 can be multiplied by 4 to get the 8/20.

Minchanka [31]3 years ago

4 0

Answer: i am pretty sure its B

Step-by-step explanation:

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What is the simplified form of the following expression?

madam [21]

Answer:

B. 242

Step-by-step explanation:

6 0

3 years ago

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:

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