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gtnhenbr [62]
3 years ago
13

Expand and simplify each expression. 3(m + 2) + 4(6 + m) = Response area 5(2p + 5) + 4(2p −3) =

Mathematics
1 answer:
SVEN [57.7K]3 years ago
6 0

Answer:

Step-by-step explanation:

3(m+2)+4(6+m)

3m+6+24+4m

3m+4m+6+24

7m+30

--------------------

5(2p+5)+4(2p-3)

10p+25+8p-12

10p+8p+25-12

18p+13

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Mark did 2/5 of a job and Alan did 1/3 of the remainder. The fraction of the job left undone
Evgesh-ka [11]
2/5=4/10=12/30 1/3=10/30 12/30+10/30=22/30 22/30=11/15
4 0
3 years ago
What is the answer to 10k-9=9k + 10?
oee [108]
K=19 which would leave the equation 181=181. The first step to solving this is subtracting 9k from each side.
after you do that it should be k-9=10
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7 0
3 years ago
The population of California is approximately 38,040,000. The population of Texas is about 2.606 × 107. What is the approximate
liubo4ka [24]

Answer:

The total population of these two states is:

3.804\times \:\:10^7+2.606\times \:\:10^7\:=10^7\times \:\:6.41

Therefore, option C is correct.

Step-by-step explanation:

  • The population of California is approximately 38,040,000.
  • The population of Texas is about 2.606 × 10⁷.

Writing the population of California i.e.38,040,000  in scientific notation by moving the decimal point 7 places to the left and dropping the 0's on the right  side as they're after the decimal point now.

i.e.

38,040,000 = 3.804 x 10⁷

So adding 3.804 x 10⁷ and 2.606 × 10⁷

i.e.

3.804\times \:10^7+2.606\times \:10^7

\mathrm{Add\:similar\:elements:}\:10^7\times \:3.804+10^7\times \:2.606=10^7\times \:6.41

Thus, the total population of these two states is:

3.804\times \:\:10^7+2.606\times \:\:10^7\:=10^7\times \:\:6.41

Therefore, option C is correct.

4 0
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jek_recluse [69]
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3 years ago
? Explain idk what that means
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7 people, 7 walls, 48 minutes

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20 persons, 20 walls

Each can paint 1 wall in 48 minutes so it will

take 48 minutes.

5 0
4 years ago
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