3 years ago

$115. Today, the price rose to $161. Find the percentage increase. $ ?

Mathematics

1 answer:

Svetllana [295]3 years ago

3 0

Answer:

40%

Step-by-step explanation:

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Given: 3x - 5 = 4 (2x – 15) Prove: x = 11 Statement Reason

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Step-by-step explanation:

3x-5=8x-60

55=5x

x=11

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2 years ago

How do you do this problem?

faust18 [17]

The volume of the original cylinder is

... V = π·r²·h

For r=1 and h=1, this is

... V = π·1²·1 = π

For the new cylinder, the volume is 1.089 times that amount.

... V = 1.089π = π·1.1²·(1-k)

... 1.089/1.21 = 1-k

... k = 1 - 1.089/1.21 = 1 - 0.9 = 0.1 = 10%

The appropriate choice is (B) 10.

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3 years ago

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Without multiplying, tell whether the product 0.644 x 0.25 will be greater than 1 or less than 1? Explain how you know.

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Answer:

Less than 1

Step-by-step explanation:

As 0.644 and 0.25 are less than 1, then

$0.644=\frac{1}{p}$

$0.25=\frac{1}{q}$

where p and q are greater than 1

then

$0.644\times0.24=\frac{1}{p.q}$

But p.q is greater than 1, so 1/(p.q) is smaller than 1

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I have no friends so I want two people to answer my statistical question for me to complete my box chart. The question is how ma

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(12 ÷ 3 + 6) -4 Math help

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Answer:

Well, we have to remember that we must use PEMDAS, or the order of operations, to solve the expression.

Therefore, we must first either divide or multiply anything that is inside of the parentheses. (In this case divide)

$12/3=4$

$(4+6)-4$

Now solve what remains in the parentheses.

$4+6=10$

$10-4$

Finally, subtract 4 from 10 and get your answer:

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