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andrezito [222]
4 years ago
7

I really need an answer asap! 15 points each!!

Mathematics
1 answer:
lesya692 [45]4 years ago
3 0

It would take them 8.5 hours.

Explanation:

Since they are painting the room together, they would basically each paint half of the room. So if they were painting half of the room each, it would take them half of the time that it would

normally take each of them. Half of Sally's time is 3.5 hours. And half of John's time is 5 hours. When you add them together, you get 8.5 hours.

Hope this helps!

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4 years ago
1. Segment A'B' is parallel to segment AB. What is the length of segment BB'?
ella [17]

Answer:

A. 3.5

Step-by-step explanation:

Given that AB is parallel to A'B', therefore,

CB/CB' = CA/CA'

CB' = 7

CB = CB' + BB' = 7 + BB'

CA' = 6

CA = CA' + AA' = 6 + 3 = 9

Plug in the values

(7 + BB')/7 = 9/6

(7 + BB')/7 = 3/2

Cross multiply

2(7 + BB') = 7(3)

14 + 2BB' = 21

Subtract 14 from both sides

2BB' = 21 - 14

2BB' = 7

Divide both sides by 2

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BB' = 3.5

5 0
3 years ago
Out of 180 questions in a trivia book, Destiny answered 156 questions and was correct on 117 of them. What percent of all the qu
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Answer:86.67

Step-by-step explanation:

156:180*100 =

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hoped this helped :)

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3 years ago
is the degree of ( f+g)(x) equal to the degree of f(x) or g(x) , which ever has the highest degree ?​
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Answer:

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Step-by-step explanation:

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3 years ago
The temperature at a mountain base camp was −3 degrees Celsius on Monday. Tuesday morning, the temperature was 2 degrees Celsius
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