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SSSSS [86.1K]
2 years ago
7

The expression to find the perimeter of a rectangle is 2(length + width). What is the 1 perimeter, in units, of a rectangle of l

ength 7 unit and width 2 unit? ​
Mathematics
2 answers:
Svetradugi [14.3K]2 years ago
8 0
The answer would be 18 units I believe

2(7+2)
2(9)
18 units

kolezko [41]2 years ago
4 0

Answer:

18/14 but reduced it would be 9/7

Step-by-step explanation:

Formula :P = 2(L + W)

You would change them into fractions over one, which os the 1 perimeter.

L = 1/7

W = 1/2

P = 2(L + W)

P = 2(1/7 + 1/2)

P = 2(2/14 + 7/14)

P = 2(9/14)

P = 18/14 which reduces to 9/7

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Five more than the quotient of a number and 3 equals 2.
MakcuM [25]

Answer:

\large\boxed{\dfrac{n}{3}+5=2\ or\ n:3+5=2}

Step-by-step explanation:

\dfrac{n}{3}+5=2\\\\\dfrac{n}{3}-\text{the quotient of a number}\ n\ \text{ and 3}\\\\...+5-\text{five more than}

If you want a solution:

\dfrac{n}{3}+5=2          <em>subtract 5 from both sides</em>

\dfrac{n}{3}+5-5=2-5

\dfrac{n}{3}=-3            <em>multiply both sides by 3</em>

3\!\!\!\!\diagup\cdot\dfrac{n}{3\!\!\!\!\diagup}=(3)(-3)\\\\n=-9

4 0
2 years ago
The price of a television set on scale is $360. This two thirds of the regular price. Find the regular price.
snow_tiger [21]

Answer: I believe it would be $600

Step-by-step explanation:

3 0
3 years ago
6
GalinKa [24]

Answer:

I don't know sorry

sorry

Step-by-step explanation:

I don't know sorry

sorry

3 0
2 years ago
Simplify: 5y-3/12y - y-5/20y:<br><br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7B5y-3%7D%7B12y%7D%20-%5Cfrac%7By-5%7D%7B20y%7D"
Damm [24]

Answer:

i think the answer is -y^2/20 + 2y/3 - 1/4

6 0
3 years ago
In 2000, the population of a county was 25,300,987. The population decreased at a rate of 2% each year. What was the population
EastWind [94]

Answer: In 2008 the population was 21,525,144

Step-by-step explanation:

You need to use the following formula for Exponential decay:

P=P_0(1-r)^t

Where P_0 is the initial population in the year 0, r is the rate of decay and t is the time.

In this case, you can identify that:

P_0=25,300,987\\\\r=2\%\\\\t=8

Therefore, substituting these values into the formula for Exponential decay, you get:

P=P_0(1-r)^t\\\\P=(25,300,987)(1-\frac{2}{100})^8\\\\P=21,525,144

Then, in 2008 the population was 21,525,144

6 0
2 years ago
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