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3 years ago

On his 8 tests, Hong earned a total of 568 points. What was his mean number if points earned per test?

Mathematics

1 answer:

madam [21]3 years ago

6 0

Answer:

He earned 71 points per test on average.

Step-by-step explanation:

Divide the total amount of points by the amount of tests to find the average (mean.)

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Deshawn has two bags of marbles. The first bag has 2 blue, 3 orange, and 5 red. The second bag has 4 pink, 10 blue, and 6 brown.

madreJ [45]

Answer: 0.1

Step-by-step explanation:

Given

Bag-I has 2 blue,3 orange, 5 red

Bag-II has 4 Pink,10 blue, 6 brown

No of ways of choosing a blue marble from bag-I

$\Rightarrow ^2C_1$

Total no of ways of choosing a marble from bag-I

$\Rightarrow ^{10}C_1$

No of ways of choosing a blue marble from bag-II

$\Rightarrow ^{10}C_1$

Total no of ways of choosing a marble from bag-II

$\Rightarrow ^{20}C_1$

The probability that he will pull out a blue marble from each bag is

$\Rightarrow P=\text{Probability of pulling a blue marble from bag-I}\times \text{Probability of pulling a blue out bag-II}$

$\Rightarrow P=\dfrac{^2C_1}{^{10}C_1}\times \dfrac{^{10}C_1}{^{20}C_1}\\\\\Rightarrow P=\dfrac{2}{10}\times \dfrac{10}{20}=\dfrac{1}{10}$

3 0

3 years ago

Eleni is n years old. In thirteen years she will be twenty four years old-

Alja [10]

Well do 24 - 13.

You should get 11.

N = 11.

7 0

3 years ago

Read 2 more answers

Evaluate a + 6 for a = 10

denis-greek [22]

If a = 10, then the equation would be 10+6.
The answer would be 16.
Hope this helps! :D

5 0

4 years ago

Read 2 more answers

(12) — (23 + 13i) =<br> Chc

rewona [7]

Answer:

-11 - 13i.

Step-by-step explanation:

(12) — (23 + 13i)

= 12 - 23 - 13i

= -11 - 13i.

4 0

3 years ago

For f(x) = -3x - 5, find f(-11). Explain what f(11) really means for the problem ?? Need this in like the next 4 hours please!!!

Verdich [7]

Answer:

for -11, 28. for 11, -38

Step-by-step explanation:

Typos in your question. can't tell if you need -11 or pos 11

-3(-11)-5 = 33-5= 28

-3(11)-5 = -33-5 = -38

7 0

4 years ago