MATHEMATICS MIDDLE SCHOOL

Simplify: –4(x – 5) + 3(a – 7)A.
–4x + 3a + 41

B.
–4x + 3a + 1

C.
–4x + 3a – 1

D.
–4x + 3a – 41

Answers

Answer 1
Answer: -4 (x - 5) + 3 (a - 7)

First, expand your problem. / Your problem should look like: -4x + 20 + 3a - 21
Second, simplify. / Your problem should look like: -4x + 3a - 1

Answer: -4x + 3a - 1 (C)
Answer 2
Answer: −4(x−5)+3(a−7)

Distribute:

=(−4)(x)+(−4)(−5)+(3)(a)+(3)(−7)

=−4x+20+3a+−21

Combine Like Terms:

=−4x+20+3a+−21

=(3a)+(−4x)+(20+−21)

=3a+−4x+−1

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What is an equivalent expression to (24a+56b)

Answers

you could write 2(12a+28b)

What is 1.2498 rounded to the nearest hundredth?

Answers

It is 1.25
Since, 9 is above the number 4, you have to round up.
When you round find the place your rounding to so
1.249
Look at the nine and then the 4 in the hundreths place
The nine make the 4 go up
so the anwser is 1.25
Hope I helped
with Hugs ~L

At a shelter, 15% of dogs are puppies. There are 60 dogs at the shelter.How many are puppies?

Answers

It is important to look at allthe information’s already given in the question. Those information’s will comein handy while solving the question.
Number of dogs in the shelter = 60
Percentage of puppies in the shelter = 15%
Then
Number of puppies in the shelter = (15/100) * 60
                                                     = 900/100
                                                     = 9
So there are a total of 9 puppies in the shelter.I hope the procedure is clearenough for you to understand. I am glad to have helped you.
60* (15/100)= 9.

There are 9 puppies in the shelter~

What is the decimal equivalent of 17/20?
A. 0.085
B. 0.117
C. 0.85
D. 8.5

Answers

I believe it’s the answer is C

Answer:

C

Step-by-step explanation:

Well its not A,B,orD because the first two are hundreths and the last one is way too big(greater than 1) so it must be C

Hope this helps :D Please mark brainliest if correct

Mrs. Beach bought shells at a gift shop. The red shells (r) were $0.75 each, and the white shells (w) were $0.49 each. The total cost was $4.70 for 8 shells. Later, the clerk forgot how many of each color shell he sold, so he guessed 4 red and 4 white shells. That was 8 shells, but the cost was $4.96. What advice would you give the clerk for his next guess?

Answers

The clerk’s next guess should be fewer red shells and more white shells.

The given parameters are:

  • Red shell costs $0.75 each
  • White shell costs $0.49 each
  • A total of 8 shells were purchased at $4.70

The clerk's guess of $4.96 for 4 red shells and 4 blue shells is greater than the actual purchase.

This means that:

The clerk should make use of fewer red shells, and additional white shells.

This is so because the unit price of the red shells is greater than that of the white shells

Read more about linear functions at:

brainly.com/question/15602982

Answer: The cost was too high. Since red shells cost more than white shells, the clerk’s next guess should be fewer red shells and more white shells. I would guess 3 red shells and 5 white shells.


Step-by-step explanation:

Do you know
10(55-1000)/90+2=?

Answers

The answer to the question is: No, but I could calculate it if that were necessary.
• We're starting by calculating the number in brackets: 55-1000 = - 945.
• Now , we have:

 • 10x (-945) : 90 + 2 =
= -9450: 90 + 2 =
= - 105 +2
= - 103 .
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