Find the fractional equivalent of 21%

Answers

Answer 1

Answer: 21/100 (this is simplest form)

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What is 5(-x) equal to?

Answers

Answer:

Step-by-step explanation:

where are the options?

Solve 19.9 = 9y - 8.

Answers

19.9=9y-8
+8
so it is
27.9=9y
÷9y
so your answer is
y=3.1

if solving for y, the answer would be y=3.1

Solve the following system of equations for all three variables.5x−2y+z = 8
−9x+2y+2z = 5
−9x−2y−5z = 4

Answers

  5x - 2y + 1z = 8 ⇒   5x - 2y + 1z = 8
-9x + 2y + 2z = 5 ⇒ -9x + 2y + 2z = 5
-9x - 2y - 5z = 4 -4x + 3z = 13

5x - 2y + 1z = 8
-9x + 2y + 2z = 5 ⇒ -9x + 2y + 2z = 5
-9z - 2y - 5z = 4 ⇒ -9x - 2y - 5z = 4
-18x - 3z = 9

-4x + 3z = 13
  -18x - 3z =   9
-22x = 22
  -22 -22
  x = -1
  -18x - 3z = 9
-18(-1) - 3z = 9
18 - 3z = 9
- 18 - 18
-3z = -9
-3 -3
z = 3

5x - 2y + z = 8
5(-1) - 2y + 3 = 8
-5 - 2y + 3 = 8
-2y - 5 + 3 = 8
-2y - 2 = 8
  + 2 + 2
  -2y = 10
-2   -2
y = -5
  (x, y, z) = (-1, -5, 3)

What percent of 84 is 9?

Answers

If you would like to know what percent of 84 is 9, you can calculate this using the following steps:

x% of 84 is 9
x% * 84 = 9
x/100 * 84 = 9
x/100 = 9 / 84
x = 9/84 * 100
x = 10.71

The correct result would be 10.71%.

The percentage of the number 84 which equals 9 is 75/7 percent.

How to determine a percentage?

Given the parameter:

"9 is what percent of 84"

To find what percent of 84 is 9, you can use the following formula:

Percent = (Part / Whole) × 100

Where:

Part = 9 (the smaller value you want to find the percentage of)

Whole = 84 (the larger value)

Now, plug in the values:

Percent = (9 / 84) × 100%

Simplifying we get:

Percent = (9 / 21) × 25%

Percent = (75/7)%

Therefore, 9 is 75/7 percent of 84.

Learn more about Percentages here: brainly.com/question/24159063

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Carpet costs $12 per square yard. How much will it cost to carpet a room that is 180 square feet?

Answers

Converting units from feet to yards is easy. However, it becomes tricky when converting square yard to square feet but it is easy if you get the gist of it. Simply square both sides of the conversion:

Since 3 feet = 1 yard
(3 feet)^2 = (1 yard)^2
9 feet^2 = 1 yard^2

In the same way, if you want to convert from cubic feet to cubic yard, simply cube (raise to the power of 3) both sides. :)

240 dollars hope it helps

[-3 x 8] + (7 - 4) exponent of 2

Answers

[-3 x 8] + (7 - 4)^2
= [-24] + (3)^2
= -24 + 9
= -15

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63x + x2 -6x +7 x -3