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andriy [413]
3 years ago
12

Simplify 3a-3b/3a+12b

Mathematics
2 answers:
Leni [432]3 years ago
7 0

3a-3b/3a+12b

Factor 3a-3b by 3

3(a-b)

Factor 3a+12b

3(4a+b)

3(a-b)/3(4a+b)

Cross out 3 and 3 , divide by 3

= a-b/4a+b

Answer: a-b/4a+b

Lena [83]3 years ago
6 0
If it is a fraction like (3a-3b)/(3a+12b)
= [3(a-b)]/[3(a+4b)]
= (a-b)/(a+4b)
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You are buying lawn seed for the the football field a 10 pound bag of lawn seed covers 2000 square feet.
Masja [62]

A football field is 120 yards long (100 yards playing field plus 2 end zones 10 yards each) by 53 1/3 yards wide.

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53 1/3 yards x 3 = 160 feet.

The area of the football fields is 360 x 160 = 57,600 square feet.

1 bag covers 2000 square feet:

57,600 / 2,000 = 28.8 bags, round up to 29 bags are needed.

1 bag cost $27.79.

29 bags x $27.79 = $805.91 total cost.

7 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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asambeis [7]

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7 0
3 years ago
Can someone help me with this? I don't really understand it​
SSSSS [86.1K]

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