Why do some equations have the same variable on both sides?

Answers

Answer 1

Answer: some equations have the same variable on both sides because you are supposed to solve for that number. for example 5x+4=11-2x for this example, so you dont have to deal with negatives, you would add 2x to both sides first. and you would do that so that you can cancel out the variable on the right side so that it is only on the left side so you end up with, 7x+4=11. the next thing you would do is subtract 4 from both sides so that you can get the variable by itself on one side so it would look like this, 7x=7. and to finish it off, you would divide both sides by 7, and get x.

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Luke has 25 units of fencing which is the largest rectangle for which he can use the fencing?

Answers

The perimeter of Rectangle should be equal to 25 units as the length of fence is 25 units.
So here is one example,
length of rectangle is 10 units and width is 2.5 units and perimeter is 2×(l+b)
=> 2×(10+2.5)
=> 2×12.5
=> 25 units.

HELPPPP PLEASE WITH THIS QUESTIONI WILL MARK BRAINLIEST

1. The blades of a ceiling fan rotate about a circle of 113 inches. What is the most likely length of a ceiling fan blade?
a. 24 inches
b. 18 inches
c. 36 inches
d. 12 inches

Answers

So, this question is like finding the radius given the circumference.
Circumference is 113, and the formula to find the radius is $r = C/2 \pi$
$r = 113/2 \pi$

R ≈ 17.98
So, the most likely length of of the blade would be B) 18 inches.

It should be about 18 inches

What does 64/100 represent as a ratio and a percent

Answers

64/100 is easy its just 64 out of 100

Last Friday Adam had $22.33. Over the weekend he received some money for cleaning the attic he now has $32 how much money did he receive

Answers

Answer:

9.67

Step-by-step explanation:

32-22.33=9.67

Hope it helps ;)

Answer:

9.67

Step-by-step explanation:32-22.33=9.67

Evaluate -x2 +x–1 forx=-1

Answers

Answer:

-3

Step-by-step explanation:

-x^2 +x–1

Let x = -1

- (-1)^2 + (-1) -1

- 1 -1 -1

-3

Answer:

Step-by-step explanation:

the equation after plugging in "x" is

-(-1)*(2)+(-1)-1

then after multiplication it is

2-1-1

this becomes 0

One linear expression is subtracted from a second linear expression and the difference is x — 5. What is the difference when the second linear expression is subtracted from the first?

Answers

$-(x-5)\n-x+5$

-x+5

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