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lys-0071 [83]
3 years ago
11

A row of plaques cover 120 square

Mathematics
1 answer:
Mademuasel [1]3 years ago
7 0
I am guessing your question is <span>A row of plaques covers 120 square feet of space along a wall. If the plaques are 3 feet tall, what length of the wall do they cover?
I know the answer to this question because i had to do this for a test before. and the answer is that it covers 140 ft of the wall</span>
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Solving systems of 3 equations <br> 2x-y-3z=4<br> 4x+2y+z=10<br> 4x-y+4z=-8
dmitriy555 [2]

The solution to the system of equation is (1, 4,-2)

<h3>Solving system of equations</h3>

Given the following system of equation below

2x-y-3z=4

4x+2y+z=10

4x-y+4z=-8

Subtract equations 2 and 3 to have:

3y - 3z = 18

y - z = 6

y =6 + z ............. 4

Also multiply <u>equation 1 by 2 and subtract from 2</u> to have;

2x-y-3z=4

4x+2y+z=10

----------------------------

-4y - 7z = -2 .......... 5

Substitute 4 into 5 to have

-4(6+z) - 7z = -2

-24 - 4z - 7z = -2
-24-11z = -2

-11z = 22

z = -2

Substitute x = -2 into y =6 + z

y = 6 - 2

y = 4

Determine the value of x

2x - y - 3z = 4

2x - 4 + 6 = 4

2x = 4 - 2

2x = 2

x = 1

Hence the solution to the system of equation is (1, 4,-2)

Learn more on system of equation here: brainly.com/question/25976025

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1 year ago
Estimate the quotient 3.5 divided by 4
I am Lyosha [343]
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3 years ago
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Reduce the fraction 512/128 into the simplest form.​
frez [133]

Answer:

Therefore, 512/128 simplified to lowest terms is 4/1.

Step-by-step explanation:

Reduce 512/128 to lowest terms

The simplest form of  

512

128

is  

4

1

.

Steps to simplifying fractions

Find the GCD (or HCF) of numerator and denominator

GCD of 512 and 128 is 128

Divide both the numerator and denominator by the GCD

512 ÷ 128

128 ÷ 128

Reduced fraction:  

4

1

Therefore, 512/128 simplified to lowest terms is 4/1.

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3 years ago
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The table is missing though but you may consider the following calculations :

Y = 1.6 x
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