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chubhunter [2.5K]
4 years ago
9

John is using square ceramic floor tiles that are each 18 inches long. how many of these tiles will john need to cover a floor w

ith an area of 81 square feet? site:
Mathematics
1 answer:
Leto [7]4 years ago
3 0

First we need to convert the square feet to square inches

1 square feet = 144 square inches

Therefore, 81 square feet = 81*144 = 11,664 square inch

Each square tile is 18 inches long. Since its a square, the area of each tile = 18*18 = 324 square inch

So,the number of tiles required to cover the entire floor= total area of the floor in square inches/ area of the tile in square inches

The number of tiles required to cover the entire floor = 11,664/324 = 36 tiles

The number of tiles required to cover the entire floor = 36 tiles

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Step-by-step explanation:

well, a squared+b squared=c squared

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5 0
3 years ago
Including a 7% sales tax, an inn charges $109.14 per night. Find the inn's nightly cost before tax is added.
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2 years ago
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4 years ago
If 1/4 of the 7th graders got an A on the test and 2/5 of them got a B, that fraction of the students got an A or B?
posledela

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Step-by-step explanation:

Given: Fraction of 7th graders got A = \dfrac14

Fraction of 7th graders got B = \dfrac25

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Hence, the required fraction: \dfrac{13}{20}

5 0
3 years ago
Simplify 3√ 2 – √ 2 . A. 4√ 2 B. 3√ 2 C. 2√ 2 D. √ 2
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