All categories

4 years ago

50 Points! Can you please solve this problem and mildly explain it?

Mathematics

1 answer:

Juli2301 [7.4K]4 years ago

8 0

Answer:

But u only gave 25 points silly

Step-by-step explanation:

You might be interested in

A university has 31,560 students. In a random sample of 180 students, 12 speak three or more languages. Predict the number of st

kodGreya [7K]

<h3>Hello there!</h3>

Here's the information given to us written out:

- 31560 total students

- 12/180 students speak 3 or more

To solve:

To solve this, use the probability from the survey of 180 students to make a reasonable estimate for the 31560 total students.

12/180 students were able to speak 3 or more languages. This proportion, of 12 students : 180 students can be adjusted.

Just like when simplifying fractions, both sides can have an operation (of multiplication or division) done to it and still be equivalent.

In this case, we want to set the side of total students to be equivalent to 31560 to get the estimated number of students that speak 3 or more languages.

To get the number to multiply both sides by:

31560 / 180 = 175 1/3 = 526/3

Now, carry out the operation - multiply both sides by that number.

12/180 = (12 * 526/3) / (180 * 526/3) = 2104 / 31560

So, out of 31560, using the same probability, around 2104 students would speak 3 or more languages.

Hope this helped!

3 0

4 years ago

Round up 17.888 to 1 decimal place

Kisachek [45]

Answer:

17.9

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

How to work out problem 6 3/4 - 8 2/3

Dafna11 [192]

Answer:

-23/12

Step-by-step explanation:

6 3/4-8 2/3

=27/4-26/3

=3*27-26*4/12

=81-104/12

=-23/12

8 0

4 years ago

Read 2 more answers

What is the square unit of 6 by 9 square unit what is the area?

sammy [17]

Answer:

54 unit ^2

Step-by-step explanation:

Well a formula for a rectangle is a=lw

So 6*9=54

The area is 54

7 0

3 years ago

The value of an autographed baseball from 2017 is $300. The value of the baseball exponentially increases by 5% each year after

lord [1]

For this case we have a function of the form:

$y = A * (b) ^ x$

Where,

A: initial value of an autographed baseball

b: growth rate

x: number of years

Substituting values we have:

$y = 300 * (1.05) ^ x$

For the moment when the value is at least 650 $ we have the following inequality:

$300 * (1.05) ^ x \geq 650$

Answer:

a one-variable inequality that could be used to solve for the number of years, x, it would take for the baseball to be worth at least $650 is:

$300 * (1.05) ^ x \geq 650$

5 0

4 years ago

Read 2 more answers