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liraira [26]
2 years ago
15

Help please!! (if you can, show work) will mark brainliest!

Mathematics
2 answers:
sveta [45]2 years ago
8 0

Answer:

4.4

Step-by-step explanation:

Alekssandra [29.7K]2 years ago
4 0

Answer:

4 1/4 tiny times and tiny plus 17/4     4  3/5 same thing like the first one 23/5 add 40/5 then divided it will be 4.7 I think

Step-by-step explanation:

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There are 9 students ain class 2 boys 7 girls and a teacher picks 4 at random what is the probability in the group that everyone
marissa [1.9K]

Answer:

2/3.

Step-by-step explanation:

Ok, so at first, the probability of the teacher picking a girl is 7/9. And then when she takes one girl, it is less, so the probability is 6/8. Then if she picks 2 more girls, then the probability of that would be 4/6, or 2/3.

3 0
2 years ago
Can you guyz help me with this question.please write the answers step by step ☺️
sasho [114]
Hey! Ok so with this problem, you can figure out the pattern with subtraction.

If you convert the fractions to decimals you get 3.25 and 5.625. 
5.625 - 3.25 = 2.375, which means he increased his run by 2.375 miles.
8 - 5.625 = 2.375 as well, which follows the pattern. So what you would need to do from here is add 2.375 miles for each day he jogged. 

8 + 2.375 = 10. 375, the miles he jogged on thursday. 
10.375 + 2.375 = 12. 75, the miles he jogged on friday.

So, when converted to fractions, your answer is D: Eric jogged 12 3/4 miles on Firday


7 0
3 years ago
You have to make 1000 buttons.the diameter of the button is 9cm but you have to find it’s area.its $15/m squared and you have to
Semmy [17]

Answer:

$95.38

Step-by-step explanation:

step 1

Find the area of one button

The area is equal to

A=\pi r^{2}

we have

r=9/2=4.5\ cm ---> the radius is half the diameter

Convert to meters

r=4.5\ cm=4.5/100=0.045\ m

assume

\pi =3.14

substitute

A=(3.14)(0.045)^{2}\\A=0.0063585\ m^2

step 2

Find the area of 1,00 buttons

Multiply by 1,000

A=0.0063585(1,000)=6.3585\ m^2

step 3

Find the cost

Multiply $15 per square meter by the total area of 1,000 buttons

(15)6.3585=\$95.38

3 0
3 years ago
What is the Mean Absolute Deviation of the following numbers?<br> 32, 67,83, 15, 89, 32
hram777 [196]

Answer:

53 I believe

Step-by-step explanation:

add all then divide by how much numbers are there

3 0
3 years ago
Calculate the GPA of a student with the following grades: B (77 hours), D (66 hours), F (2020 hours). Note that an A is equivale
d1i1m1o1n [39]

Answer:

The student's GPA is of 0.82.

Step-by-step explanation:

GPA:

To find the student's GPA, we find his weighed mean.

Grades:

7 hours worth 3(B)

6 hours worth 1(D)

20 hours worth 0(F). So

M = \frac{7*3 + 6*1 + 20*0}{7+6+20} = 0.82

The student's GPA is of 0.82.

8 0
2 years ago
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