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Elis [28]
3 years ago
9

A 10-item statistics quiz was given to 30 students. The table below gives the scores received along with the corresponding frequ

encies.
A 2-column table with 6 rows. Column 1 is labeled score with entries 5, 6, 7, 8, 9, 10. Column 2 is labeled Frequency with entries 1, 2, 5, 5, 7, 10.

What was the mean score on the quiz?

7.5
8.5
9
10
Mathematics
1 answer:
hichkok12 [17]3 years ago
3 0

Answer:

Should be (B).

8.5

ED2021

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Answer:

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Step-by-step explanation:

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3 years ago
I need help on #4 ASAP!!!!
kodGreya [7K]
Hi there. 

A triangle's interior angles must always add up to 180 degrees. Since we already have one measurement, 56, we can set up an equation to solve for the missing angles.

(2x + 4) + 56 + x= 180; solve for x.
Subtract 56 from both sides.
(2x + 4) + x = 124;
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Divide both sides by 3 to solve for x.
x = 40.

Now, we need to substitute x with 40 in each of our angles to determine their measurements.
2x + 4; x = 40.
2(40) + 4 = 80 + 4 = 84; 
One measurement is 84 degrees.

x = 40 is another measurement on its own.

Our measurements are:
56, 84, and 40.

Your corresponding answer choice is H.) 56, 84, 40.

I hope this helps!
7 0
3 years ago
Jack reads 40 pages per hour. Dave reads at the rate of 3 5 of a pages per minute. Who reads faster? By how many pages per hour
lana66690 [7]

If dave is reading 3.5 then the answer is Dave and he read 170 more pages then Jack.

Step-by-step explanation:

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170 + 40= 210 so thats how I know 170 is the answer.

3 0
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Answer:

im not 100% sure but i think its the last one

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im not 100% sure though

Step-by-step explanation:

7 0
3 years ago
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