Ask question

Ask question

All categories

3 years ago

10

The ratio of the number of fiction books to the number of reference books in a library is 9:5. What is the fraction of the books

are reference books?

1 answer:

Vladimir79 [104]3 years ago

4 0

The fraction of the books that are reference books is 5/14 i think. hope that helps !!

You might be interested in

Can someone help me with this question? I flagged the ones i needed help with and yea. This is one of them. Please fill in the b

TEA [102]

P 14 is r=14 and P 16 is r=12

7 0

3 years ago

Galina-37 [17]

Answer:

a

Step-by-step explanation:

-2 over 3 is it cuz -4 over 6 simplifies to that and all the others do too

8 0

3 years ago

the population of the city in north carolina is 403,892 what is 403,892 rounded to the nearest thousand

Thepotemich [5.8K]

403, 892 rounded to the nearest thousand is 404,000.

The three is in the thousands place, and the 8 in the hundreds place tells us us to round up. The three becomes a 4 and everything behind it a 0. :)

4 0

3 years ago

Read 2 more answers

A certain large manufacturing facility produces 20,000 parts each week. The manager of the facility estimates that about 1% of t

Slav-nsk [51]

Answer:

198 is the variance for the number of defective parts made each week.

Step-by-step explanation:

We are given the following in the question:

Number of parts produced each week = 20,000

Percentage of defective parts = 1%

We have to calculate the variance for the number of defective parts made each week.

We treat defective part as a success.

P(Defective part) = 1% = 0.01

$p = 0.01$

Then the number defective parts follows a binomial distribution .

Formula for variance =

$\sigma^2 = np(1-p) = 20000(0.01)(1-0.01) = 198$

Thus, 198 is the variance for the number of defective parts made each week.

8 0

3 years ago

Select all the expressions that are equivalent to 15n – 10.

Lilit [14]

Answer:

Step-by-step explanation:

the expression is equivalent with

5(3n-2)=15n-10

5 0

3 years ago