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kumpel [21]
3 years ago
10

It takes 36 minutes for 7 people to paint 4 walls. How many minutes dose it take for 9 people to paint 7 walls?

Mathematics
1 answer:
Llana [10]3 years ago
4 0
4 walls need 262 people/minutes (7)(36)
1 wall takes 63 people/minutes (262/4)
7 walls need 441 people/minutes (63)(7)
9 people could do that in 49 minutes (441/9)
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There are two balance beams at the gym.one is 15 feet long ,theother is 162 inches long.which beam is longer?
Oduvanchick [21]
12 inches = 1 foot

Let x=length of 2nd balance beam in feet

by ratio and proportion

1/12 = x/162

multiply noth sides by 162 to isolate x

(1/12)(162) = (x/162)(162)

162/12 = x

13.5 = x

Source -->https://socratic.org/questions/at-the-gym-one-balance-beam-is-15-feet-long-while-the-other-is-162-in...<--

can you help me? brainly.com/question/3131429 
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3 years ago
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All 150 eighth grade students at a local middle school were asked how many hours they studied during the week. Each row of the t
DENIUS [597]

Answer:

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(6+5+3+0+4)/5 = 18/5 = 3.6

Row 2:  

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Row 3:  

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Row 4:  

(4+2+5+6+3)/5 = 20/5 = 4.0

The greatest mean , or the largest mean is 4.6  or Row 2

6 0
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What is the inequality for 4x-9&gt;8x+3
balandron [24]
x < - 3


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3 0
2 years ago
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hjlf

Answer:

31 tacos

Step-by-step explanation:

(let t be the number of tacos last Tuesday)

178=23+5t

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3 years ago
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