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Naya [18.7K]
1 year ago
14

The price of an item has risen to $169 today. Yesterday it was $130. Find the percentage increase.

Mathematics
2 answers:
mamaluj [8]1 year ago
8 0

Answer:30%

Step-by-step explanation:

azamat1 year ago
8 0

Step-by-step explanation:

so,

100% = $130

1 % = 100%/100 = 130/100 = $1.30

the price changed by 169 - 130 = $39.

how many % are that ?

as many % and times 1% fits into $39 :

39 / 1.3 = 30%

the price increase was 30%.

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The length of a rectangle is 5 less than 3 times its width. The perimeter is
My name is Ann [436]

Answer:

The length is 28 and the width is 11

Step-by-step explanation:

To solve this problem, we can make the width as x.

Since the length is 5 less than 3 times the width, it's going to be 3x - 5

So now we've got the length and width, just need to find the perimeter, which is all the sides added up together. They already gave us the perimeter, so we just have to solve the equation:

2(3x - 5) + 2x = 78

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x = 11, but remember, x is the width, not the length. Since we already found what x is, we just have to plug it into the equation of:

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Answer: Length = 28 (don't forget to add the unit if there is one)

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Step-by-step explanation:

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