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galina1969 [7]
4 years ago
15

Karyn proofread a 15 pages in 2 hours for $40.

Mathematics
1 answer:
xxMikexx [17]4 years ago
3 0
A. 8 pages per hour because 120 (2 hours) ÷15=8
b. $40÷15 (pages)=$2.70 (rounded)
You might be interested in
How do I find it. ..............
Alenkinab [10]

Answer:

∠CBD = 4(4) + 52°

              = 16° + 52°

              <u>= 68°</u>

Step-by-step explanation:

Given that,

∠ABC = 8x - 10°

∠CBD = 4x + 52°

Also,

∠ABD = 90°

∠ABD = ∠ABC + ∠CBD

∠ABD (90°) = (4x + 52°) + (8x - 10°)

∠ABD (90°) = 4x + 52° + 8x - 10°

∠ABD (90°) = (4x + 8x) + (52° - 10°)

∠ABD (90°) = 12x + 42°

90° - 42° = 12x

48° = 12x

\frac{48}{12} = x

4° = x

∠CBD =  4x + 52°

∴ ∠CBD = 4(4°) + 52°

              = 16° + 52°

              = 68°

7 0
4 years ago
A square bathroom has an area of 100m2. What is the distance from
inysia [295]

Answer:

10\sqrt{2}  meters

Step-by-step explanation:

The bathroom is in the shape of a square. The area of square is given as:

A=s^2

Where

s is the length of the side

We know area is 100, thus:

A=s^2\\100=s^2\\s=\sqrt{100} \\s=10

The side length of the square is 10 meters.

The distance from one corner to another corner is known as the "diagonal".

We use the formula below to get the distance of the diagonal:

d=\sqrt{2}s

Where

d is the length of diagonal

s is the length of side [here, 10]

THus, length of diagonal is:

d=\sqrt{2}(10)\\ d=10\sqrt{2} meters

6 0
3 years ago
Read 2 more answers
A mathematics instructor wants to see if a computer homework system improves the scores of the students in the class. The instru
Vilka [71]

Answer:

No

Step-by-step explanation:

Two samples are matched pairs if the samples are dependent sample. All the attributes or characteristics of these samples are the same except the one thing which we need to study or experiment.

The given samples are independent samples. So, these these two sample are not matched pair samples. Such samples cannot be used to perform the paired sample t test. For this test the samples must always be dependent.

Example of dependent or matched pairs samples under given scenario would be like:

The instructor teaches a section in one semester using the computer homework system and in the next semester he teaches the same section using the paper and pencil homework system.

Usually the pairs in matched pairs are the same people just at different time, as stated in the previous example.

4 0
4 years ago
Express 0.1846 as a mixed number
Vinil7 [7]

Answer: I'm not sure about the mixed number but the fraction is 923/5000

7 0
3 years ago
Three more than the product of two and a number x
Nonamiya [84]

2x+3

You are taking two times a number, which is defined as x. That is equivalent to 2x. Then, you are adding three more to that product.

3 0
4 years ago
Read 2 more answers
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