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Ann [662]
2 years ago
14

There are 20 pens in a package. Ten of the pens are black, 8 are blue, and the rest are red.

Mathematics
2 answers:
icang [17]2 years ago
3 0
If there are ten black pens, eight blue pens, and twenty pens in total, then there are 2 red pens. This means that the ratio of red to black is 2:10=1:5. Hope this helps!
saul85 [17]2 years ago
3 0

Answer:  The ratio represents the number of red pens to black pens = 1:5.

Step-by-step explanation:

Given : Total pens in package = 20

Number of black pens = 10

Number of blue pens = 8

Number of red pens =   (Total pens in package) - (Number of black pens ) -(Number of blue pens )

= 20-10-8

=2

Now , the ratio represents the number of red pens to black pens =

Number of red pens : Number of black pens

=2 : 10

= 1 :5  [Dividing both sides by 2]

Thus , the ratio represents the number of red pens to black pens = 1:5.

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Using the together rate, it is found that it would take them 16 hours to sew 12 dresses.

<h3>What is the together rate?</h3>

The together rate is the <u>sum of each separate rate</u>.

In this problem, we have that:

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Hence, the together rate is the time it would take them to produce one dress working together, and is given by:

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To learn more about the together rate, you can take a look at brainly.com/question/25159431

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