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3 years ago

Please tell me the answers to 4 and 5 no links

Mathematics

1 answer:

Cerrena [4.2K]3 years ago

5 0

Answer:

4) choice a 30%

5) choice b 62.5%

Step-by-step explanation:

4) 3/10 = 0.30 or 30%

5) 5/8 = 0.625 or 62.5%

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This test is literally the death of me but can anyone help?

Neporo4naja [7]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

The sample consisted of 50 night students, with a sample mean GPA of 3.02 and a standard deviation of 0.08, and 25 day students,

bulgar [2K]

Answer: The test statistic is t= -0.90.

Step-by-step explanation:

Since we have given that

n₁ = 50

n₂ = 25

$\bar{x_1}=3.02\\\\\bar{x_2}=3.04\\\\\sigma_1=0.08\\\\\sigma_2=0.06$

So, s would be

$s=\sqrt{\dfrac{n_1\sigma_1^2+n_2\sigma_2^2}{n_1+n_2-2}}\\\\s=\sqrt{\dfrac{50\times 0.08^2+25\times 0.06^2}{50+25-2}}\\\\s=0.075$

So, the value of test statistic would be

$t=\dfrac{\bar{x_1}-\bar{x_2}}{s(\dfrac{1}{n_1}+\dfrac{1}{n_2})}\\t=\dfrac{3.02-3.04}{0.074(\dfrac{1}{50}+\dfrac{1}{25})}\\\\t=\dfrac{-0.04}{0.074(0.02+0.04)}\\\\t=\dfrac{-0.04}{0.044}\\\\t=-0.90$

Hence, the test statistic is t= -0.90.

7 0

3 years ago

A painter earns $15 per hour.What is the minimum number of hours he must work to earn at least $200?

babunello [35]

12 hours in order to make 200 dollars

5 0

3 years ago

How do you solve this???????<br> 3x+6=-5-2x-6

Elina [12.6K]

Answer:

Step-by-step explanation:

3x+6=-5-2x-6

+2x. +2x

5x+6= -5-6

5x+6= -11

-6. -6

5x= -17

divide by 5

x= -3.4

4 0

3 years ago

There are 35 students in a drama club two out of every five boys in the club are boys how much diamonds in the club are boys

andrew11 [14]

Given:

Number of students = 35

Two out of every five boys in the club are boys.

To find:

The number of students in the club that are boys.

Solution:

Two out of every five boys in the club are boys. It means, the ratio of boys to the total number of student is 2:5.

Let the number of boys be 2x and number of students be 5x.

According to the question,

$5x=35$

$x=7$

Now, the number of boys is

$2x=2(7)$

$2x=14$

Therefore, 14 students in the club are boys.

8 0

3 years ago