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pochemuha
3 years ago
13

If you read can read 40 pages in 2 hours, how many pages can you read in 5 hours?

Mathematics
2 answers:
max2010maxim [7]3 years ago
5 0
40pages=2hours
40pages=2hours
40/2=20
20=1hour
40+40+20=100pages
Pavlova-9 [17]3 years ago
3 0
You can read 100 pages in 5 hours.

40 pages in 2 hours. We need to get the unit rate. In this case, we need to get the number of pages read in 1 hour.

40 pages ÷ 2 hours = 20 pages per hour.

20 pages per hours * 5 hours = 100 pages.
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The length of a rectangle is 4 meters more than the width of the rectangle. The perimeter of the rectangle is 40 meters. What ar
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Answer:

Length = 12 m, Width = 8 m

Step-by-step explanation:

Let the width of the rectangle is b.

Length, l = 4+b

The perimeter of the rectangle = 40 m

We know that,

Perimeter of rectangle = 2(l+b)

2(4+b+b) = 40

4+2b = 20

Subtract 2 from boths sides,

2b = 16

b = 8

Width = 8 m

Length = 4+8 = 12 m

Hence, the length and the width of the rectangle is 12 m and 8 m respectively.

6 0
3 years ago
Determine the sum: 21.6 x 10^4 + 5.2 x 10^7. Write your answer in scientific notation.
lana [24]

Answer:

It's D

Step-by-step explanation:

Hope this helps :))

6 0
3 years ago
Choose the simplified form of  the fifth term of 6C4(2x)2(-y2)4.​
Katarina [22]

You didn't give us the choices.   It doesn't matter.  I think you're trying to write

\displaystyle {6 \choose 4} (2x)^2 (-y^2)^4

= \dfrac{6!}{4! 2!} ( 4x^2 y^8)

= \dfrac{6(5)}{2} ( 4x^2 y^8)

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Answer: 60 x² y⁸

4 0
3 years ago
A new battery is expected to have a storage capacity of 60 ampere-hour (A h). A sample is tested, resulting in a 2-side confiden
antoniya [11.8K]

Answer:

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Step-by-step explanation:

We are given the following in the question:

Mean storage capacity = 60 ampere-hour

95% confidence interval =

63\leq \mu \leq 72

Thus, the correct answer based on the confidence interval is

Option B) The battery storage capacity is significantly different than 60 Ah, at a confidence level of 95 %

Since it is a two sided test we test whether the mean storage capacity is 60 Ah or different than 60 Ah

Thus, the battery storage is different from 60 Ah because the mean storage capacity does not lie in the 95% confidence interval.

4 0
3 years ago
Graph y-4=2x and identify<br> the slope and y-intercept.
zzz [600]

Answer:

slope is 2 and y-intercept is (0, 4)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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