A rectangular bedroom floor has an area of 100 square feet and a length of 10 feet. What is the perimeter of the floor?

Answers

Answer 1

Answer: The area is calculated by multiplying the length by width, the perimeter is calculated by adding up every side of the rectangle

Considering that we already are given the length of the floor we must divide 100 (the area) by 10 (the length) to get the width

100/10= 10 (the width)

The perimeter is equal to each side of the rectangle added together, a rectangle has two lengths and two widths

Therefore: 10 (the length) + 10 (the length) + 10 (the width) + 10 (the width) = 40

The perimeter is 40 feet

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The price of an item has been reduced by 20%. The original price was $55. What is the price of the item now?if you get this correct i will mark you brainliest!

Answers

Answer:

$55.00 divided by 0.20 = 0.0275 = $2.75

$55.00 - $2.75 = $52.25

List three different examples of rational numbers

Answers

Answer:

5, 1.75, .001, and -0.1

Step-by-step explanation:

Number As a Fraction Rational?

5 5/1 Yes

1.75 7/4 Yes

.001 1/1000 Yes

−0.1 −1/10 Yes

Hope this Helps (✿◡‿◡)

P.S I got this off the internet.

How do you convert gallons to liters? Explain

Answers

Multiply the quantity in gallons by (3.785 liter/gal) .
The product is the same quantity in liters.

1 gallon is equal to about 3.785 liters that's what the scientific community has decided on.

Is 4,400 is 10 times as much as 440

Answers

to do question we have to multiply 10 and 440: ("x times as much" is x Multiplied by", so "twice as much as 4 is 8", or "3 times 4 is 12),

this is 4400 or 4,400 - this is true!

In the quadratic equation x2 - 8x + a = 0; what is the value, a, in order to form a perfect square?A) 8
B) 16
C) 32
D) 64

Answers

The answer is D.

x² - 8x + 64 = 0
  (x - 8)² = 0
  x - 8 = 0
  + 8 + 8
x = 8

Answer:

That's wrong the answer was B) 16

Step-by-step explanation:

Which shows 60^2 − 40^2 being evaluated using the difference of squares method?A. 60^2 − 40^2 = (3600 + 1600)(3600 − 1600) = 10,400,000

B. 60^2 − 40^2 = 3600 − 1600 = 2,000

C. 60^2 − 40^2 = (60 − 40)^2 = 20^2 = 400

D. 60^2 − 40^2 = (60 + 40)(60 − 40) = (100)(20) = 2,000

Answers

The difference of squares method uses the following formula:

$a^(2) - b^(2) = (a+b)(a-b)$

Answer A has the squares multiplied out, then put into the formula, which is incorrect.

Answer B does not use this formula, as the squares are multiplied out and solved without using this method.

Answer C subtracts in terms of the power, which is completely wrong.

The answer is D.

Answer:

D. 60^2 − 40^2 = (60 + 40)(60 − 40) = (100)(20) = 2,000

Step-by-step explanation:

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