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harkovskaia [24]
3 years ago
12

4 people take 3 hours to paint a fence assume that all people paint at the same rate How long would it take one of these people

to paint the same fence?​
Mathematics
1 answer:
Andrew [12]3 years ago
5 0

Answer:

12

Step-by-step explanation:

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What polynomial must be added to x^2-2x+6 so that the sum is 3x^2+7x?
slavikrds [6]
2x^2+9x-6 i found this by subtracting 3x^2+7x from the other equation
5 0
3 years ago
A school district had four elementary schools to start the year. North Elementary School had 1,200 students, East Elementary Sch
kobusy [5.1K]

Answer:

C

Step-by-step explanation:

Add all the schools together, then divide by 5

5805/5

6 0
3 years ago
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The population of a certain country is expected to double every 32 years. The population of this country was 4.2 million people
mojhsa [17]

Answer:

2.2%

Step-by-step explanation:

Given the following :

Population in year 2000 (A) = 4.2 million

Expected population every 32 years = 2 *A

The growth rate per year =?

The population figure after 32 years = (2 * 4.2 million) = 8.4 million

Using the exponential growth formula :

P(t) = A × (1 + r)^t

(1 + r) = g = Total growth percent

A = Initial population

t = time

P(t) = 8.4 million

8,400,000 = 4,200,000 × g^32

g^32 = (8400000/4200000)

g^32 = 2

Taking the root of 32 on both sides

g = 1.02189714865

g = (1 + r)

1.02189714865 = 1 + r

r = 1.02189714865 - 1

r = 0.02189714865

.rate = 0.02189714865 * 100

= 2.18971486541%

= 2.2% ( nearest tenth)

4 0
3 years ago
What makes up the sides of an angle?
lesantik [10]
The sides of the angle are the lengths which it is formed
3 0
3 years ago
John has a rope that is 10 yards long. HoW long is his rope in inches?
jek_recluse [69]

Answer:

360 in.

Step-by-step explanation:

1 yd = 36 in.

10 yd = 10 * 1 yd = 10 * 36 in. = 360 in.

7 0
2 years ago
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