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ad-work [718]
3 years ago
11

1. Jeff has a rectangular table top that is x feet wide. The length of the table top is 3 times its width.

Mathematics
1 answer:
MArishka [77]3 years ago
5 0
<span>The perimeter of a rectangle is: P = 2(l + w) So we have: P = 2(l + x) This is one of our expressions. It says the length is 3 times the width. So we have 3 * x or 3x. We can write: l = 3x Now plug this into the formula: P = 2(l + x) Plug in '3x' for 'l'</span>
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True or false
Nadusha1986 [10]

Step-by-step explanation:

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True

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False

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4 0
3 years ago
Read 2 more answers
Divide 180 in a ratio of 4:5:9
Amiraneli [1.4K]
Ratio in which 180 should be divided is 4:5:9
firstly we need to find the total number of portions 
this we can find by adding all the numbers making up the ratio 
4 + 5 + 9 = 18
180 is made of 18 portions 
size of 1 portion = 180 / 18 = 10
when dividing 180 into the respective ratio 4:5:9 the portions are as follows
4 x 10 = 40
5 x 10 = 50
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therefore when we divide 180 in the ratio 4:5:9
the answer we get is
40 :50: 90

7 0
3 years ago
Read 2 more answers
The volume is a rectangular prism is 7,200 cubic centimeters. It has a length of 24 centimeters and a width of 20 centimeters. W
Setler [38]
7,200 = (24)(20)h
15=h (just divide)
To check, 20*24*15 = 7,200 cubic centimeters so 15 cm is right
7 0
3 years ago
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What is the solution of 3x + y = 9 and 3x − 5y = 15?
Marianna [84]
So there are two ways.
First you could solve for y and plug it into the calculator. one equation for y1 and another for y2. Then go 2nd trace and press 5 and then press enter 3 times  to find the intersection. 
the second way is to solve by hand. I would suggest solve the first equation for y and plug the equation solved for y into the other equation. so y = -3x + 9 and 3x-5y=15. Then you could do 3x - 5(-3x+9) = 15. Finally solve for x and plug in x into both equations to see if you get the same y value. 
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3 0
3 years ago
Read 2 more answers
What is the value of 3-(-2)?
Akimi4 [234]

Answer:

5

Step-by-step explanation:

The double negatives turn into a positive which makes the problem 3+2 which equals 5.

3 0
3 years ago
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