Ask question

Ask question

All categories

3 years ago

10

On his math facts quiz, Jeremy missed 2 out of 11 questions. The next quiz 55 questions. How many can Jeremy expect to get corre

ct?

1 answer:

raketka [301]3 years ago

7 0

Answer: 45

Step-by-step explanation:

(11x5)-(2x5)=45 correct and 10 incorrect

You might be interested in

The equation d=m/v can be used to calculate the density, d, of an object with mass, m, and volume, V. Which is an equivalent equ

Rasek [7]

Answer:

B

Step-by-step explanation:

because equal to mass over volume

6 0

1 year ago

A small piece of metal weighs 0.77gram.What is the value of the digit in the tenths place

4vir4ik [10]

I think it's the first 7.

I hope this helps :-)

5 0

3 years ago

Read 2 more answers

A researcher wishes to estimate, with 9090% confidence, the proportion of adults who have high-speed Internet access. Her es

Sunny_sXe [5.5K]

Answer: a) Required minimum sample size= 219

b) Required minimum sample size= 271

Step-by-step explanation:

As per given , we have

Margin of error : E= 5% =0.05

Critical z-value for 90% confidence interval : $z_{\alpha/2}=1.645$

a) Prior estimate of true proportion: p=28%=0.28

Formula to find the sample size :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.28(1-0.28)(\dfrac{1.645}{0.05})^2\\\\=218.213856\approx219$

Required minimum sample size= 219

b) If no estimate of true proportion is given , then we assume p= 0.5

Formula to find the sample size :-

$n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.25(\dfrac{1.645}{0.05})^2\\\\=270.6025\approx271$

Required minimum sample size= 271

8 0

2 years ago

Can someone please tell me What’s 2=m/2 -7 ?

Pepsi [2]

Answer:

Step-by-step explanation:

2 = m / 2 - 7

2 + 7 = m / 2

9 = m / 2

cross multiply

m = 9 * 2

Therefore m = 18

Hope u understood and it helped.

3 0

3 years ago

In a class of 22 students, 15 play an instrument and 11 play a sport. There are 9

ollegr [7]

Answer:7/22

Sorry I don’t know how to explain.But here the answer.

Hope this helped!

Have a great day!

6 0

2 years ago