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pychu [463]
3 years ago
13

lemont has 30 books to pack the boxes each box holds 7 books if he fills each box how many boxes are left over

Mathematics
1 answer:
mariarad [96]3 years ago
6 0

Answer:

2 books

Step-by-step explanation:

If 7 books= 1 box

Then 30 books= 30÷7= 4 boxes with a remainder of 2 books

Therefore books left over= 2 books

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Simplify each algebraic expression 5a+5b-4(a+b)
Snowcat [4.5K]

Answer:

b-4a

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The graph of the function P(x) = −0.74^2 + 22x + 75 is shown. The function models the profits, P, in thousands of dollars for a
Juliette [100K]

Answer: 5.6 ≤ x ≤ 24.13.

Step-by-step explanation:

Given, The graph of the functionP(x) = -0.74^2 + 22x + 75 . The function models the profits, P, in thousands of dollars for a tech company to manufacture a calculator, where x is the number of calculators produced, in thousands.

In graph , On axis → number of calculators produced

On y-axis →  profit made in thousands of dollars.

From the graph, the curve goes for y > 175 from x = 5.6 to x= 24.13 ( approx)

So, the reasonable constraints for the model 5.6 ≤ x ≤ 24.13.

So, If the company wants to keep its profits at or above $175,000, reasonable constraints for the model 5.6 ≤ x ≤ 24.13.

6 0
4 years ago
22% of all resumes received by a corporation for a management position are from females. 18 resumes will be received tomorrow.
Vladimir79 [104]

Answer:

5.80% probability that exactly 1 resume will be from females.

Step-by-step explanation:

For each resume received by the corporation, there are only two possible outcomes. Either they are from a female, or they are not. The probability of a resume received being from a female is independent from other resumes. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

22% of all resumes received by a corporation for a management position are from females.

This means that p = 0.22

18 resumes will be received tomorrow.

This means that n = 18

What is the probability that exactly 1 resume will be from females?

This is P(X = 1).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 1) = C_{18,1}.(0.22)^{1}.(0.78)^{17} = 0.0580

5.80% probability that exactly 1 resume will be from females.

3 0
3 years ago
Twenty one is no less than the sum of a number and -2
Gala2k [10]
x+(-2)=21

get rid of -2 by subtracting it from 21
x+(-2)=21-(-2)
Now you get your answer
x=23
Hope this helps! :)

4 0
4 years ago
I need help with these questions, thanks!
kifflom [539]

Answer:

????

Step-by-step explanation:

number 1 could be 2 different answers

7 0
3 years ago
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