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tatyana61 [14]
3 years ago
5

Can you combine like terms without formally showing the distributive property? Explain.

Mathematics
1 answer:
blsea [12.9K]3 years ago
6 0
Yes you can! Say you have 5(2 + x) + 3x. The answer would be 10+8x because when you use the distributive property you will end up getting 5*2 5*x and once you multiply, it's obvious 5 times 2 is 10 and 5 times x will equal 5x. Then you add 5x and 3x and get 8x. So, the simplified expression here is 10+8x. When you have this as an answer it's proving your answer right. You can without using the distributive property. We can have 10+5x+3x and it will be your simplified expression. It's the same thing with equations too.
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Pls answer these questions correctly for brainly
FinnZ [79.3K]

40 - 3k + 10k = -10 - 8k - 10

40 + 7k = -10 - 8k - 10

40 + 7k = -8k - 20

40 + 7k - 40 = -8k - 20 - 40

7k = -8k - 60

7k + 8k = -8k - 60 + 8k

15k = -60

15k/15 = -60/15

k = -4

8 0
3 years ago
Can someone help me please
Pavel [41]

Answer:

you end up with 75 divided by 3.

Step-by-step explanation:

75 divided by 3 - 8 + 8

add 60 and 15

3 - 2(4) + 2^3

multiply -2 by 4

3 - 8 + 2^3

multiply 2 by itself 3 times

3 - 8 + 8 (which gives you 3 again)

and you get 75 divided by 3

3 0
2 years ago
If 3x2 - 2x - 16 represents the area of a rectangle, what is the perimeter of that rectangle?
zubka84 [21]
The answer should be B if I am correct
4 0
2 years ago
Need some help with this one!!!
muminat

Answer:

210

Step-by-step explanation:

2 x 3 x 5 x 7 = 210

4 0
3 years ago
The girls in Lana’s troop set a goal to sell 1,000 boxes of cookies this year. There are 13 girls in the troop. At least how man
motikmotik

Answer:

77

Step-by-step explanation:

The troop wants to sell a minimum of 1,000 boxes, so we're looking for the smallest number of boxes they can sell and still meet the goal. Since there are 13 girls in the troop, take the ceiling (round up to the nearest whole number) of 1,000 divided by 13:

\left\lceil \frac{1,000}{13}\right\rceil=\boxed{77}

8 0
2 years ago
Read 2 more answers
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