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Nookie1986 [14]
4 years ago
13

Of the 420 students enrolled in basic math, only 30% are first year students. How many are first year students? How many are not

?
Mathematics
2 answers:
rodikova [14]4 years ago
8 0

Answer:

126 are first year students. 294 are not.

:

Lesechka [4]4 years ago
8 0

Answer:

126 are first years and 294 are not.

Step-by-step explanation:

We know that 30% students of 420 students are years. To find the first years we multiply 30% or 0.3 by 420 to get 126.

To find the students who are not first years we take the 420 total students and subtract 126 to get 294 or you can take the remaining 70% or 0.7 of 420 to get 294 which are not the first year students.

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Step-by-step explanation:

6 0
3 years ago
 In a​ company, 80​% of the workers are women. If 480 men work for the​ company, how many workers are there in​ all? Use pencil
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Answer:

The total workers are<u> 2400.</u>

Step-by-step explanation:

Given:

In company 80% of the workers are women.

480 workers are men.

Now, to find the total workers in all.

<u><em>In first way:</em></u>

If women are 80%, then men would be 100-80 = 20%.

Let the total workers be x.

According to question:

20\%\ of \ x=480

⇒\frac{20}{100} \times x=480

⇒0.20\times x=480

⇒0.20x=480

Dividing both sides by 0.20 we get:

⇒x=2400.

Total workers = 2400.

<em><u>Now, in second way</u></em>.

Again, let the total workers be  x.

According to question:

x-80\%\ of\ x=480

⇒x-\frac{80}{100}\times x=480

<em>On solving:</em>

⇒x-0.80x=480

⇒0.20x=480

<em>Dividing both sides by 0.20 we get:</em>

⇒x=2400.

<em>Total workers = 2400.</em>

Therefore, the total workers are <u>2400</u>.

7 0
3 years ago
The pool holds 17,922 gallons of water, and is leaking at a rate of 4 gallons per day. If Mike does not replace the water that h
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17442

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3 0
4 years ago
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3/4 and 1/3

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The fractions will be rewrited as: 9/12 and 4/12

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