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klemol [59]
2 years ago
7

Simplify the following expressions: 1/3(6a+12)+3a

Mathematics
2 answers:
Maru [420]2 years ago
3 0
Answer in simplified expression: 5a+4
SSSSS [86.1K]2 years ago
3 0

The simplified answer is 5a + 4

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Melissa and Jane are planting trees. Melissa plants 10 trees in 1 hour. Jane plants 17 tree in 2 hours.
nadezda [96]

Answer:

6 hours

Step-by-step explanation:

Let both of them plan for  t hours to plant 111 trees n t hours

Melissa  can plants 10 trees in 1 hour

in t hours she can plant 10 t trees

Jane plants 17 tree in 2 hours

in one hour Jane can plant 17/2 trees

in t hours she can plant (17/2)t  trees.

Total trees planted by both of them in t hours in terms of t will be

10t + (17/2)t

= (10t*2 + 17t)/2

= (20t + 17t)/2

= 37t/2

but it is given that they planted 111 trees together

so 37t/2 should be equal to 111

37t/2 = 111

=> 37t = 111*2 = 222

=> t = 222/37 = 6.

Thus, it takes 6 hours for both of them to plant 111 trees together.

4 0
2 years ago
John runs 500 feet per minute. identify the correct conversion factor setup required to compute john's speed in inches per secon
nadezda [96]

Answer:

The correct answer is A) 12 Inches/1 Foot multiplied by 60 Seconds /1 Minute  

Step-by-step explanation:

The explanation is very direct and simple.

There are 12 Inches in every Foot and 60 seconds in every minute.

This is all that is required to accurately compute johns speed in inches per second.

Cheers!

4 0
2 years ago
Read 2 more answers
A book has 89 pages, but the page numbers are printed incorrectly. Every third page number has been omitted, so that the pages a
Sphinxa [80]

Answer:

89

Step-by-step explanation:

There are only 30 pages but last page number is 89.

8 0
2 years ago
John can type 2/3 of a manuscript in 12 hours. How much of the manuscript can John write in 1 hour?
Marina86 [1]
John can write 1/18 of the manuscript in 1 hour
Hope this helps!!
8 0
2 years ago
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Brad get an allowance of $16 each week, and his younger sister Samantha gets an allowance of $9 each week. Brad save one-half of
Lyrx [107]

Answer:

160

Step-by-step explanation:

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2 years ago
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