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Bumek [7]
2 years ago
11

Kelsey painted one-fourth of her bedroom in three-sevenths of an hour. At this rate, how long would it take her to paint the ent

ire room?
A 3/28 of an hour
B 28/3 of an hour
C 12/7 of an hour
D 7/12 of an hour
Mathematics
1 answer:
malfutka [58]2 years ago
5 0
12 Over seven of an hour
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All of the members of our spray-painting team paint at the same speed. If 20 team members can paint a 4800 square foot wall in 3
KATRIN_1 [288]

Answer:

It takes 70 minutes for 9 team members (painting 60 sq ft per minute) to paint a 4200 sq ft wall.

Step-by-step explanation:

4800 ÷ 20 = 240 sq ft per team member in 36 minutes

240 ÷ 36 = 6.67 sq ft per team member in 1 minute

6.67 × 9 = 60 sq ft per 9 team members in 1 minute

4200 ÷ 60 = 70 minutes (or 1 hour and 10 minutes)

3 0
3 years ago
-3x + 1 > 22 or 4x - 5 > 15
Mazyrski [523]

Answer:

Step-by-step explanation:

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2 years ago
Given the function f(x)=2x-1<br> Evaluate: <br>a) 2f(x) <br> b) f(2x)​
Dmitrij [34]

Answer:

a) 2f(x) = 4x - 2

b) f(2x) = 4x - 1

Explanation:

Given function:

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b) f(2x)

f(2x) = 2(2x) - 1

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3 0
1 year ago
Solve.<br> - 7x^2+ 7x+1= -8
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Answer:

i think it is 1.127

Step-by-step explanation:

4 0
3 years ago
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a company donates 935 pencils to a school. the pencils are divided evenly among 9 classrooms. the rest of the pencils are given
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The problem deals with a division and the rest of it, that is dividing the total amount of pencils into 9 classrooms and the rest, lets express it as fraction:
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8 0
3 years ago
Read 2 more answers
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