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3 years ago

1/5 of a number is 14. Find the number

Mathematics

1 answer:

zheka24 [161]3 years ago

6 0

We set up a proportion: 14/?= 1/5

Cross multiply: 1*?= 14*5
⇒ ?= 14*5/1= 70

1/5 of 70 is 14.

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Correctly name the following angle.

chubhunter [2.5K]

Answer: ∠EDC or ∠CDE

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3 years ago

How would the solution of the inequality 3/7 (35x - 14) ≤ 21x/2 + 3 be graphed on a number line?

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3 years ago

What is the slope of a line with points (5.5,2.2)(11,4.4)?

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Answer:

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3 years ago

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3 years ago

Darrin is hanging 200 feet of Christmas garland on the fencing around his house. The fence has the shape of a rectangle and full

lianna [129]

Answer:

the width is 17.5 feet and the length is 82.5 feet.

Step-by-step explanation:

The house has a rectangular shape and we know that the length is 5 feet less than 5 times the width.

We will call the width x, thus, the length would be represented as 5x-5 (5 less than 5 times the width).

Since Darrin is going to hang garland around the perimeter of the house, we know that the perimeter is 2 times the length plus two times the width and this equals 200.

Let's write this in algebraic form

$width = x\\length= 5x-5\\Perimeter= 2width +2length=200\\200=2(x)+2(5x-5)\\200=2x+10x-10\\200=12x-10\\200+10=12x\\210=12x\\210/12=x\\x=17.5$

Therefore, the width is 17.5 feet.

Now, the length is 5x-5, thus substituting the 17.5 in this equation we have:

$5x-5=5(17.5)-5=87.5-5=82.5$ feet

Therefore, the width is 17.5 feet and the length is 82.5 feet.

7 0

3 years ago