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Anna [14]
3 years ago
5

When a number is increased by 2.8%, the result is 56. What is the original number to

Mathematics
1 answer:
Sever21 [200]3 years ago
6 0

Answer:

The original number was 54.5.

Step-by-step explanation:

If a number is increased by 2.8%, then it is 102.8% of it's original number.

In mathematics, "of" in virtually all cases means "multiplied by".

Therefore, we do the opposite:

1. Convert to a decimal.

102.8% = 1.028

2. Divide by the decimal.

56 \div 1.028 = 54.47

3. Round it to the nearest tenth.

54.47 rounds to 54.5.

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The line goes through the ordered pair (10, 6) It has a y-intercept of -2.
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Answer: the x-intercept would be (2,-2)

Step-by-step explanation:

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3 years ago
A furniture store pays a wholesale price for a mattress. Then, the store marks up the retail price to 150% of the wholesale pric
slega [8]
Part A:

Given that <span>the mattress is sold for 50% off of the retail price, let the retail price of the mattress be x, then

50% of x = 1200
⇒ 0.5x = 1200
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Therefore, </span><span>the retail price of the mattress, before the discount is $2,400.



Part B:

Given that </span><span>the store marks up the retail price to 150% of the wholesale price. Let the whole sale price be p, then

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3 0
3 years ago
I need to know what the volume of the cone in cubic inches please
ivolga24 [154]

Answer:

V = 118 in³

Step-by-step explanation:

The volume of a cone of radius r and height h is V = (1/3)(π)(r^2)(h).

In this case, the volume is V = (1/3)π(3 in)^2·(6 in), or π(18 in³)

Using 3.14 as the approximate value of π, we get V = 118 in³

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for Jocelyn's lemonade recipe for lemons are required to make 12 cups of lemonade at what rate are lemons being used in cups of
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