1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Igoryamba
3 years ago
8

Eric has been donating books he no longer needs to his local library. After 3 months of donating, he had 157 books left in his r

oom. After 8 months of donating, he had 102 books left in his room. How many books per month did Eric donate on average between months 3 and 8?
Mathematics
1 answer:
alexgriva [62]3 years ago
8 0
He would donate approximately 11 books a month <span />
You might be interested in
In Brazil, about 20 acres of rainforest are destroyed each minute. At this rate, how much rainforest is destroyed per day?
eduard
Each day <span>28800</span> acres are being destroyed per day
4 0
3 years ago
Read 2 more answers
Megan picks a card from a deck of cards numbered 1-10 and rolls a number cube. What is the probability she chooses a card with a
ehidna [41]

Answer:

1/20 if there is only those 10 cards in a deck and 1/26 if there is 52 cards in the deck.

Step-by-step explanation:

There is 3/6 chances to roll a die with an even number, aka 1/2. If there are only 10 cards in the deck and only one of them has the number 5, it's 1/10. To find the probability of both these things happening, multiply the probabilities. 1/10 x 1/2 is equal to 1/20. However, since the question doesn't specify if there is 52 cards like a normal deck and 4 5's etc, there can be a different answer because if there's 52 cards in a deck, 4 of them 5's, the chance of getting a 5 is 4/52 or 1/13 and then you multiply that by 1/2 to get 1/26

4 0
3 years ago
Read 2 more answers
Write the expression 11-2 in simplest form.
vampirchik [111]

Answer:

11-2 or 9

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Urgent help please
rosijanka [135]

Let's assume the frequency of sound be f and wave length is w.

Given that, the frequency of sound varies inversely as the wavelength.

So, we can set up an equation as following:

f*w = k Where k= constant of variation.

Other information is, the frequency of a musical note is 276 cycles per second when the wavelength is 1.2m.

So, next step is to plug in f = 276 and w = 1.2 in the above equation to get the value of k.

276 * 1.2 = k

So, k = 331.2

Next step is to plug in k = 331.2 in the above equation. So,

f * w = 331.2

Now we need to find the wave length : w when frequency : f = 600.

Therefore,

600 * w = 331.2

w = \frac{331.2}{600}

So, w = 0.552

Hence, the wave length is 0.552 m.

Hope this helps you!.

5 0
3 years ago
I have to find the circumference of 15 cm​
Pie

Answer:

r = 2.39 and C=2πr=2·π·2.39≈14.99997

Step-by-step explanation:

Using the formula

C=2πr

Solving for r=C 2π=15

2·π≈2.38732

and then u round up the 7 told the 8 to go up.

2.39

7 0
3 years ago
Other questions:
  • Using the interest formula, compute the true annual interest rate. Loan amount = $9,500 Monthly payments = $227.50 Time of loan
    5·2 answers
  • Helppppppppppppppppppppppppppppppppppppppppp
    11·1 answer
  • K divided by 11 is seven
    14·1 answer
  • A bricklayer uses a cylinder to store sand. The cylinder is 5 ft tall and has a radius of 0.5 ft. Each batch of mortar contains
    10·1 answer
  • Which of the following transformations will not produce a congruent image?
    12·1 answer
  • Half a number is at least 2 units from 20.<br> Please need help!!!
    9·2 answers
  • After a nutrition experiment is completed, a report describing the project is read, analyzed, and evaluated by two or more resea
    9·1 answer
  • Which choice describes the value of m when <br> ?
    12·2 answers
  • Helping my friend with some homework please help:/
    13·1 answer
  • PLEEEEEEASE HELP A square rug covers 80 square feet of floor. What is the approximate length of one side of the rug? (Approximat
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!