Ask question

Ask question

All categories

2 years ago

8

15. A student received a 75% on an exam. If there were 20 questions on the exam, which ratio would show the number of questions

answered correctly to the total number of questions?
O A. 15 20
O B. 20:15
O C. 20.5
O D.5.20

1 answer:

Juliette [100K]2 years ago

3 0

Answer:

75% = 3/4

3/4 of 20 = 15

Ratio - 15:20 (A)

You might be interested in

What is the answer for this plz

Alexxx [7]

I think it’s y = 10x + 10

4 0

2 years ago

Find the distance between the two points. (2, 4), (7, 2)

anyanavicka [17]

Answer:

5.38516480 or √ 29

hope this helps

have a good day :)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Find the area of each sector <br><br><br><br>3m <br>150°

Oksanka [162]

Answer:

$\frac{150}{360} \times \pi \times {3}^{2} \\ 2.4 \times \pi \times 9 = 11.780 {m}^{2}$

7 0

3 years ago

The waiting time at an elevator is uniformly distributed between 30 and 200 seconds. what is the probability a rider must wait m

stira [4]

1.5 minutes = 90 second

The probability density function is

$f_X(x)=\begin{cases}\dfrac1{200-30}=\dfrac1{170}&\text{for }30\le x\le200\\\\0&\text{otherwise}\end{cases}$

so the probability of interest is

$\mathbb P(X>90)=\displaystyle\int_{90}^\infty f_X(x)\,\mathrm dx$
$\mathbb P(X>90)=\dfrac1{170}\displaystyle\int_{90}^{200}\mathrm dx$
$\mathbb P(X>90)=\dfrac{200-90}{170}=\dfrac{11}{17}\approx0.6471$

5 0

3 years ago

What’s a good anime? Fre. Points

storchak [24]

Answer:

banana fish,naruto,demon slayer

4 0

2 years ago

Read 2 more answers