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3 years ago

The price of a item has dropped to $91 today. Yesterday it was $130. Find the percentage decrease.

Mathematics

1 answer:

Inga [223]3 years ago

6 0

That would be a 30% Decrease.

Here is how I found the answer:

Step 1: Find the difference between the two numbers by using this formula: Original Number - New number = Decrease.

Step 2: Divide the decrease by the original number and then multiply your answer by 100 by using this formula: Decrease / Original Number = % Decrease.

Now you can use these formulas to find any percentage decrease between two numbers.

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What’s the radius of the circle

topjm [15]

Answer:

radius=2

Step-by-step explanation:

if the circumference=4pi and the formula is 2pir then r must be 2 and would look like this:

C = 2pir

C = 2pi2

C = 2*2pi

C = 4pi

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2 years ago

The school paper charges $1.50 for an ad, plus 25 cents per word. Carl wants to spend only $12.00 on the ad.

statuscvo [17]

Answer:

42 words

Step-by-step explanation:

To solve just solve 0.25x +1.50 = 12.00 for x

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3 years ago

Read 2 more answers

15.31 x 0.7<br> 10.717<br> 11.717<br> 107.17<br> 1.0717

Dimas [21]

Answer:

10.717

Step-by-step explanation:

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4 0

2 years ago

A customer purchased a total of 23 hamburgers and chicken sandwiches. Each hamburger costs $3.50 and each chicken sandwich costs

Bezzdna [24]

Answer:

25 2/7

Step-by-step explanation:

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6 0

3 years ago

James packs books into boxes. He packs 20 books into each box. James packs x boxes of books. write an expression, in terms of x,

Paraphin [41]

There are 20 books in each box.
If each box has 20 books, then the number of books is 20 times the number of boxes. (20 books: 1 box, 40 books: 2 boxes...)

So, using mathematical terms, the number of books is equal to the number of boxes x 20.

Here, it says James packs x boxes of books. This means that we call the number of boxes, x. X could be 1,2,3, or any other number.

So, since there are 20 times as many books as boxes, the number of books is 20 times x.

In math terms, this is written like 20x.
So the answer is 20x.

3 0

3 years ago