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brilliants [131]

3 years ago

15

Can someone help please

2 answers:

natta225 [31]3 years ago

8 0

1. According to the graph the

percentage score of a student that

slept for 8hours is 80%

2. The graph also show that the student which score 90%,the number of hours the student slept is 6hours

lisov135 [29]3 years ago

5 0

Answer:

b-80 d-6

Step-by-step explanation:

100% correct

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HELP ME ASAP <br> 1. (-4/3)-(-3/2) <br> 2 -3.9-8.9<br> 3 2.9-(-9.4)

solmaris [256]

Here is your first answer:

First find whats common which is 6:

-4×2=-8
3×2=6
-3×3=-9
2×3=6

Subtract -9 and -8
But use KCC which makes the equation...
-9+8=-1
-1/6

Here is your second answer:

First use KCC to Chang the equation into...

-3.9
-8.9

Then add:

9+9=18
=-1.28

Here is your third answer:

First change the equation (KCC):

2.9
9.4

9+4=13
3.9=12
=1.23

There are your answers:

3 0

3 years ago

There is a bag filled with 3 blue, 4 red and 5 green marbles.

guajiro [1.7K]

Answer:

1 in 3

Step-by-step explanation: I think don't quote me

5 0

3 years ago

PLEASE HELP ILL CHOOSE BRAINLIEST!!!!

MAXImum [283]

30÷4=7.5
45÷7.5=6
you will need about 6 gallons of water to fill it.

4 0

3 years ago

Read 2 more answers

the equation of a circle is x - y + 1 = 0 . if one end of the diameter is ( 3, p) and other end is ( a, 2 ) , find the equation

erma4kov [3.2K]

I gave the answer earlier, but here is the solution again, along with a graph proving it is correct.

8 0

3 years ago

Find the values of the 30th and 90th percentiles of the data. Please show your work.

MaRussiya [10]

Answer:

30th percentile:109

90th percentile: 188

Step-by-step explanation:

The given data set is:

129, 113, 200, 100, 105, 132, 100, 176, 146, 152

We arrange the data set in ascending order to obtain;

Array= $100,100,105,113,129,132,146,176,200$

The 30th percentile is located at

$(\frac{30}{100}\times 10 )}$ -th position, where n=10 is the number of items in the data set

This implies that the 30th percentile is at the 3rd position.

Since 3 is an integer, the 30th percentile is the average of the 3rd and 4th occurrence in the array;

This implies that the 30th percentile = $\frac{105+113}{2}=\frac{218}{2}=109$

The 90th percentile is located at

$(\frac{90}{100}\times 10 )}$ -th position, where n=10 is the number of items in the data set

This implies that the 90th percentile is at the 9th position.

Since 9 is an integer, the 90th percentile is the average of the 9th and 10th occurrence in the array;

This implies that the 90th percentile = $\frac{176+200}{2}=\frac{376}{2}=188$

6 0

3 years ago