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ahrayia [7]
3 years ago
11

Distributive property for 144 divided by 8 (5th grade)

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
7 0
18144 divided by 8 Distributive property
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It takes Ms. Campbell 5 times as long as it takes Ms. Dorsey to paint a room. If Ms. Dorsey
Aliun [14]

Answer:

Dorsey = 4.8 hours

Campbell = 24 hours

Step-by-step explanation:

It takes "x" hours for Dorsey

So, it will take 5 times more for Campbell, so

It takes "5x" hours for Campbell

Rate is inverse of time, so rates are:

Dorsey: 1/x

Campbell: 1/5x

We know Rate * Time = Work

When together, it takes 4 hours to finish a work, so we can write:

(\frac{1}{x}+\frac{1}{5x})4=1

Solving for x, we get the time of Dorsey:

(\frac{1}{x}+\frac{1}{5x})4=1\\(\frac{1}{x}+\frac{1}{5x})=\frac{1}{4}\\\frac{5+1}{5x}=\frac{1}{4}\\\frac{6}{5x}=\frac{1}{4}\\5x=24\\x=4.8

Dorsey takes 4.8 hours alone

Campbell takes 4.8 * 5 = 24 hours alone

7 0
2 years ago
Select the true sratement about th information in the table
DaniilM [7]

Answer:

B: For every 3 rabbits there are 8 total animals.

Step-by-step explanation:

There are 16 total animals, 6 of which are rabbits. Meaning that half of the rabbits 3, would correspond to a TOTAL animal count of 8 including those three rabbits.

5 0
3 years ago
Is sarah faster than Katie? and what is the average rate?​
slamgirl [31]

Step-by-step explanation:

here's the solution: -

Average time taken by sarah :

=》

\frac{79 + 70 + 68 + 75 + 69 + 64 + 69 + 75 + 64 + 76}{10}

=》

\frac{709}{10}

=》

70.9

average time taken by sarah = 70.9 seconds

now,

average time taken by katie :

=》

\frac{ 79 + 79 + 76 + 81 + 89 + 76 + 64 + 85 + 82 + 78}{10}

=》

\frac{789}{10}

=》

78.9

average time taken by katie = 78.9 seconds

so, sarah is more efficient (faster) than katie.

i agree with sarah.

cuz, she took less time than katie.

7 0
3 years ago
Read 2 more answers
The expression 6+16k factored using the GCF is what???????
tatiyna

Answer:

2(3 + 8k)

Step-by-step explanation:

given : 6+16k

note that the GCF of 6 and 16 is 2, hence we can factor 2 out of the expression

6+16k

= (2)(3) + (2)(8k)

= 2(3 + 8k)

4 0
3 years ago
2g+7=-4g+7+6g how do you solve that
nikklg [1K]
2g+7=-4g+7+6g \\\\\\ 2g+7=2g+7 \to True \ statement \\\\\\ 2g-2g=7-7 \\\\ \boxed{0=0}
7 0
3 years ago
Read 2 more answers
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