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velikii [3]
4 years ago
12

Please simplify 3/5(25n-10y+5n) please show work

Mathematics
1 answer:
ziro4ka [17]4 years ago
4 0

Answer:

18n-6y or 6(3n-y)

Step-by-step explanation:

3/5(25n-10y+5n)

3/5(30n-10y)

18n-6y

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A ball is dropped from the top of a building that is 1,000 feet high. Its height, in feet, as a function of the time, x, in seco
jolli1 [7]

Answer:

Positive real numbers

Step-by-step explanation:

The domain is all the possible values of x.  Here, x represents the time that the ball falls.

Natural numbers are integers greater than 0 (1, 2, 3, etc.).  However, the time doesn't have to be an integer (for example, x=1.5).

Positive integers are the same as natural numbers.

Positive rational numbers are numbers greater than 0 that can be written as a ratio of integers (1/1, 3/2, 2/1, etc.).  However, the time can also be irrational (for example, x=√2).

Positive real numbers are numbers greater than 0 and not imaginary (don't contain √-1).  This is the correct domain of the function.

3 0
3 years ago
The area of a triangle is 80. The length is 2 more than the width. Find the dimensions
Jobisdone [24]

Answer:

The width is 19 units. The length is 21 units.

Step-by-step explanation:

W=width: L=length=W+2; P=perimeter=80

P=2(L+W)

80=2(W+2+W)

40=2W+2

38=2W

19=W answer 1: The width is 19 units.

L=W+2=21 ANSWER 2: The length is 21 units.

CHECK:

P=2(L+W)

80=2(21+19)

80=2(40)

80=80

4 0
3 years ago
A police officer drives 191 miles in 152 minutes. What is the officer's average speed in miles per hour?
ozzi

Answer: I think I would be about 1.323 miles per Hour

Step-by-step explanation:

4 0
3 years ago
Tutori
Vitek1552 [10]

Answer:

  • 42 students

Step-by-step explanation:

Initial class size = 30 students

<u>Class size now is 40% larger:</u>

  • 30 + 40% =
  • 30 + 30*40/100 =
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8 0
3 years ago
Read 2 more answers
Lin knows that there are 4 quarts in a gallon. She wants to convert 6 quarts to a gallon, but cannot decide if she should multip
defon

Given:

There are 4 quarts in a gallon.

She wants to convert 6 quarts to a gallon.

To find:

Whether she should multiply 6 by 4 or divide 6 by 4 to find her answer.

Solution:

We have,

4\text{ quarts}=1\text{ gallon}

1\text{ quarts}=\dfrac{1}{4}\text{ gallon}

6\text{ quarts}=\dfrac{6}{4}\text{ gallon}

Here, 6 quarts is equal to \dfrac{6}{4} gallon. It means we need to multiply 6 by 4 in 4\text{ quarts}=1\text{ gallon} to find the answer.

5 0
3 years ago
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