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frozen [14]
3 years ago
12

HELP QUICKLY PLEASE...

Mathematics
1 answer:
Luba_88 [7]3 years ago
6 0
For the first one, I believe I is 1200
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How do you work this out
oksian1 [2.3K]

Answer:

Below.

Step-by-step explanation:

To find the number of students in each grade you multiply the marks by the frequency density. The number of students is given by the area under the  rectangles.

So to find the number of students with grade U (< 160)  it is:

120 * 0.2 + 40*0.5

= 24 + 20

= 44.

The number for Grade E

= (200 - 160) * 0.5

= 40 * 0.5

= 20.

The others can be found in the same way.

6 0
3 years ago
Can someone help with slope-intercept from two points?
bixtya [17]
Y+6=7/1(x-6)
y=7/1x-48
hope that helps!
7 0
3 years ago
Read 2 more answers
Thirty adults were asked how many pets they have had over their lifetime. The results are shown in the histogram below. Which of
Ostrovityanka [42]
The most likely answer would be C.
6 0
3 years ago
Read 2 more answers
Solve for w.<br> 3w = 3.84
Katen [24]

Answer:

w = 1.28.

Step-by-step explanation:

To find 'w', simply divide the answer by the coefficient.

3.84/3=1.28

w=1.28

REMEMBER: ANYTIME YOU SEE A COEFFICIENT AND A VARIABLE, YOU MUST MULTIPLY THE COEFFICIENT AND THE VARIABLE.

We can check our answer by multiplying.

3*1.28 = 3.84.

Therefore, w = 1.28.

7 0
3 years ago
Read 2 more answers
What is 30 divided by 4? Show your work and explain.
motikmotik

Answer:

7.5

30

÷

4

__

7.5

4×6=24

4×7= 28

4×8= 32

4×8= X

4×7.5= 30

3 0
3 years ago
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