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BaLLatris [955]
3 years ago
5

A university has 27,900 students. In a random sample of 210 students, 14 speak 3 or more languages. Predict the number of studen

ts at the university who speak 3 or more languages.
SHOW YOUR WORK AND EXPLAIN PLS! :)
Mathematics
1 answer:
I am Lyosha [343]3 years ago
7 0
First set up a proportion.
14/210 = x/27900
then divide 27900 by 210 which equals about 133
then multiply 14 by 133 which is 1862
your answer is 1862
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8 days because you multiply 1/10 x 8 = 8/10 after you simplify it you get 4/5 Hope it helped
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What is 4/10, 6/20, and 10/25 in simplest form?
Dennis_Churaev [7]
4/10 in simplest form is 2/5
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3 0
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A=30 and AB=4 how long is bc
mojhsa [17]

Answer:

bc is 26

Step-by-step explanation:

7 0
3 years ago
Hi please help me as soon as possible:
sammy [17]

Answer:

Percentage = 14.2%

Step-by-step explanation:

<u>Given the following data;</u>

Cost of plane ticket = £588

Airport tax = $130

£1 = $1.34

To find the percentage of the total cost spent on airport tax;

First of all, we would convert the ticket cost in pounds (£) to dollars ($).

Cost of plane ticket = £588 to $ = 588 * 1.34 = $787. 92

Total cost = Cost of plane ticket + Airport tax

Total cost = 787. 92 + 130

Total cost = $917.92

Percentage \; cost = \frac {130}{917.92} * 100

Percentage  = 0.1416 * 100

<em>Percentage cost = 14.16 to 1 d.p = 14.2%</em>

<em>Therefore, the percentage of the total cost spent on airport tax by Rimo is 14.2 percent. </em>

6 0
3 years ago
How do you solve f (x)=-3 (x+2)+2
Allushta [10]

Answer:

−1/3y+−4/3

Step-by-step explanation:

We need to solve for x.

How? Easy! :D

Step one: Flip the equation. (In class we call it the 'flip-flop'.) When you do this, you should have your equation look like this:

−3x−4=y

Step two: Add 4 to both sides of the equation. When you do this step, your problem should look like this:

−3x−4+4=y+4

−3x=y+4

Step three: Divide both sides by -3.

-3x/-3 = y+4/-3.

Step four: Wrap-up. What the answer is.

x = -1/3y + -4/3

Final step: OUR ANSWER!

x = -1/3 + -4/3

Hope this helped! :D

5 0
3 years ago
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