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2 years ago

63 first-graders and 21 other students attended a school assembly. What percentage of the

Mathematics

2 answers:

boyakko [2]2 years ago

4 0

Answer:

75%

Step-by-step explanation:

alexira [117]2 years ago

3 0

Answer:

75%

Step-by-step explanation:

First let's start by finding the total number of students at the assembly:

63+21=84

Then we find the percentage of the students that were first-graders.

63/84=9/12=3/4=75/100=75%

As further explanation to how this works:

We take the number of first graders over the total number of students so we can find the percentage. Then we simplify it down to 3/4. Since percentages are out of 100 we can change the fraction so it's something out of 100. We multiply the numerator and denominator by 25 (since 100/4=25) and we get 75/100 which is 75%

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Miguel runs 6 miles in 55 minutes. At the same rate, how many miles would he run in 44 minutes

Karo-lina-s [1.5K]

You can write this in a proportion way: 6/55 = x/44.
Multiply both sides by 11 to get rid of the 55 and 44: 6/5 = x/4
Now, multiply both sides by 20: 5x = 24. x = 4.8

Therefore, he can run 4.8 miles in 44 minutes.

8 0

3 years ago

Read 2 more answers

Can anyone help me with this? thank you

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In the middle of the night

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Step-by-step explanation:

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2 years ago

The Greenpoint factory produced two-fifths of the Consolidated Brick Company’s bricks in 1991. If the Greenpoint factory produce

ohaa [14]

Answer:

3500 tons

Step-by-step explanation:

The Greenpoint factory produced 2/5 of the bricks that the Consolidate Brick Company produced in 1991.

Let the amount of bricks produced by the Greenpoint factory be g and the amount of bricks produced by the Consolidated brick company be c.

Therefore:

g = 2/5 * c = 2c/5

That year, the Greenpoint factory produced 1400 tons of bricks. This implies that:

1400 = 2c/5

To find the amount that the Consolidated Brick Company produced, solve for c:

1400 = 2c/5

1400 * 5 = 2c

7000 = 2c

c = 7000 / 2 = 3500 tons

The Consolidated Brick Company had a total production output of 3500 tons in 1991.

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3 years ago

On a number line what comes first the Y or the X

zavuch27 [327]

Answer:

Rise/Run = y/x

Step-by-step explanation:

On a number line the X-axis is on the bottom, and the Y-axis is on the Top.

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3 years ago

Helpp pls it’s 25 points each

KonstantinChe [14]

Answer:

1.= 2.5

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Step-by-step explanation:

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3 years ago