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2 years ago

An item that was selling for $80 is reduced to $42. Find the percent decrease in

Mathematics

1 answer:

Westkost [7]2 years ago

3 0

Answer:

47.5%

Step-by-step explanation:

You have to first subtract 80 and 42 to find the decrease first. This is 38. Now, you have to divide this by the original number which is 80. So 38 divided by 80 is 0.475.

Now multiply this by 100.

You can easily move the decimal point to the right.

So you would get 47.5%

Hope this helped!

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What is a series?

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Answer:

A sequence of numbers summed together

Step-by-step explanation:

A series of numbers is nothing else but the sum of the various numbers or elements of a sequences.

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2 years ago

What is the following product? Assume x greater-than-or-equal-to 0

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Which is the following product? Assume x ≥ 0

$\sqrt[3]{x^{2}} \times\sqrt[4]{x^{3}}$

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B. $\sqrt[12]{x^{5}}$

C. $x\sqrt[12]{x^{5}}$

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Answer:

C. $x\sqrt[12]{x^{5}}$

Step-by-step explanation:

NOTE : $\sqrt[n]{x^{m}}=x^{\frac{m}{n}}$

$x^{a}\times x^{b}=x^{a+b}$

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$=x\sqrt[12]{x^{5}}$

3 0

3 years ago

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PLEASE I NEED THIS FAST there are 3 denominations of bills in a wallet: $1, $5, and $10. there are 5 fewer $5-bills than $1-bill

Natalija [7]

The number of $1, $5 and $10 are 49, 44 and 22 respectively.

<h3>How to use equation to find the number of bills?</h3>

There are 3 denominations of bills in a wallet: $1, $5, and $10.

There are 5 fewer $5-bills than $1-bills.

let

x = number of $1 bills

Hence,

number of $5 bills = x - 5

There are half as many $10-bills as $5-bills.

number of $10 bills = 1 / 2 (x - 5)

Therefore,

x + x - 5 + 1 / 2 (x - 5) = 115

2x - 5 + 1 / 2 x - 5 / 2 = 115

2x + 1 / 2 x - 5 - 5 / 2 = 115

5 / 2 x - 7.5 = 115

2.5x = 115 + 7.5

x = 122.5 / 2.5

x = 49

Number of $1 bills = 49

Number of $5 bills = 49 - 5 = 44

Number of $10 bills = 1 / 2 (49 - 5) = 22

learn more on equation here: brainly.com/question/13992796

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1 year ago

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Answer:

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1 year ago

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Rochelle found the quotient of an integer, x, and 13. Is her quotient a rational number? A) no B) yes C) only if x is odd D) onl

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The answer is B. Yes

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