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Vladimir [108]
3 years ago
14

Completely lost ! Need Help With This !

Mathematics
2 answers:
almond37 [142]3 years ago
5 0
The ratio from 80 to 5 would be 16. so divide 144 by 16 and you get 9. Answer:9
Brut [27]3 years ago
3 0
The answer im pretty sure would be 9.
(144/80) x 5
144/80 = 1.8
1.8 x 5 = 9
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A professor wants to know how undergraduate students at X University feel about food services on campus, in general. She obtains
hammer [34]

Answer:

15000

Step-by-step explanation:

Given that a professor wants to know how undergraduate students at X University feel about food services on campus, in general. She obtains a list of email addresses of all 15,000 registered undergraduates from the registrar’s office and mails a questionnaire to 300 students selected at random.

Only 150 questionnaires are returned.

So the sample size changed to 150. But population is the number of registered undergraduates which do not change.

Population size = 15000

8 0
3 years ago
When you multiply and divide by a negative you have to _______​
Molodets [167]

Answer:

Multiplying and dividing with integers. You also have to pay attention to the signs when you multiply and divide. There are two simple rules to remember: When you multiply a negative number by a positive number then the product is always negative.

Step-by-step explanation:

8 0
3 years ago
Carina begins to solve the equation -4 - 2/3x = -6 by adding 4 to both sides. Which statements regarding the rest of the solving
Andru [333]

Answer:

A.) After adding 4 to both sides, the equation is -\frac{2}{3}x=-2

C.) The equation can be solved for x using exactly one more step by multiplying both sides by -\frac{3}{2}

D.) The equation can be solved for x using exactly one more step by dividing both sides by -\frac{2}{3}

Step-by-step explanation:

The correct questions is as follows:

Carina begins to solve the equation -4-2/3x=-6 by adding 4 to both sides. Which statements regarding the rest of the solving process could be true? Check all that apply.

A.) After adding 4 to both sides, the equation is -2/3x=-2.

B.) After adding 4 to both sides, the equation is -2/3x=-10 .

C.) The equation can be solved for x using exactly one more step by multiplying both sides by -3/2.

D.) The equation can be solved for x using exactly one more step by dividing both sides by -2/3.

E.) The equation can be solved for x using exactly one more step by multiplying both sides by -2/3.

Given equation:

-4-\frac{2}{3}x=-6

To show the steps we will carry out in order to solve for x

Solution:

Solving for x

Step 1:

Adding both sides by 4

4-4-\frac{2}{3}x=-6+4

Thus, we get:

-\frac{2}{3}x=-2

Thus statement A is correct.

Step 2:

Multiplying both sides by -\frac{3}{2}

-\frac{3}{2}\times -\frac{2}{3}x=-2\times -\frac{3}{2}

Thus, we get:

x=3  [Two negatives multiply to give a positive]

This proves that statement C is correct.

Or Step 2:

Dividing both sides by -\frac{2}{3}

\frac{-\frac{2}{3}x}{-\frac{2}{3}}=\frac{-2}{-\frac{2}{3}}

Thus, we get:

x=-2\times -\frac{3}{2} [On dividing with a fractional divisor, we take reciprocal and multiply it with the dividend.]

x=3  [Two negatives multiply to give a positive]

This prove that statement D is correct.

5 0
3 years ago
What should i do she’s always ignoring me and when she talks to me it’s so dry the only time she seems interested in talking to
PilotLPTM [1.2K]
Either she lowkey doesn’t wanna be your friend or she’s going through something mentally.
7 0
3 years ago
Lindsay is playing a video game.
stiv31 [10]

Answer:

True

Since she lost 350 points and started with 800, 800 - 350 is correct.

5 0
3 years ago
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