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3 years ago

The perimeter of a rectangle is 24 centimeters. It's length is 9 centimeters. find the width

Mathematics

2 answers:

Norma-Jean [14]3 years ago

7 0

9+9 is 18 24-18 is 6 6 divided by 2 is 3 so the width is 3 centimeters

Natali5045456 [20]3 years ago

7 0

It is 15 because you subtract 24 with 9 and that gets you 15 and me as a brainilist plz

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A number consist of 2 digits whose sum is 8, If 8 is subtracted from the number, the digits interchange their place. The number

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Step-by-step explanation:

Let's say the two digit number is 10x + y, where x is the first digit and y is the second digit.

The sum of the digits is 8:

x + y = 8

If 8 is subtracted from the number, the digits switch place.

10x + y − 8 = 10y + x

Simplify the second equation:

9x − 8 = 9y

Substitute from the first equation.

y = 8 − x

9x − 8 = 9 (8 − x)

9x − 8 = 72 − 9x

18x = 80

x = 4.444

There's a problem. x isn't an integer. Are you sure you copied the problem correctly? Perhaps you meant if 18 is subtracted from the number, the digits switch place.

9x − 18 = 9 (8 − x)

9x − 18 = 72 − 9x

18x = 90

x = 5

y = 8 − x

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So the number is 53.

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2 years ago

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80% of a roll each

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2 years ago

The number of men and women receiving bachelor's degrees each year has been steadily increasing. For the years 1970 through the

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Answer:

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2 years ago

Ellie has 12.5 pounds of potatoes to make mashed potatoes. She uses one-tenth as many pounds of butter as potatoes. How many pou

Oksana_A [137]

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3 years ago

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Answer:

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Given that slader the internal revenue service claims it takes an average of 3.7 hours to complete a 1040 tax form, assuming th4e time to complete the form is normally distributed witha standard devait of the 30 minutes:

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b) P(b<x<c) = 0.50

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c = 4.0371 and

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Interval would be

$(3.3629, 4.0371)$

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2 years ago