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3 years ago

13

At a parade, 1/4 of the participants have red hair, 1/6 of them have brown hair, and the rest of the participants have black hai

r. What fraction of the participants have black hair?

1 answer:

Orlov [11]3 years ago

6 0

Add 1/4 by 1/6 and get 5/12 so then you have 7/12 with black hair.

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50 ÷ 5 (5 – 3) + 5 ÷ 1/5

guapka [62]

5-3=2
50/5x2+5/ 1/5
10x2=20
5/. 1/5= 25
20+25=45

3 0

2 years ago

A swimming pool measures 35 feet wide by long. What is the ratio of the length to the perimeter in simpiest form

guapka [62]

<h3><u>Question:</u></h3>

A swimming pool measures 35 feet wide by 50 feet long. What is the ratio of the length to the perimeter

<h3><u>Answer:</u></h3>

The ratio of length to perimeter of pool is 5 : 17

<h3><u>Solution:</u></h3>

Given that, swimming pool measures 35 feet wide by 50 feet long

Therefore,

Length = 50 feet

Width = 35 feet

Swimming pool is usually of rectangular shape

<em><u>The perimeter of rectangle is given as:</u></em>

Perimeter = 2(length + width)

Perimeter = 2(50 + 35)

Perimeter = 2(85) = 170

Thus perimeter of pool is 170 feet

<em><u>Ratio of length to perimeter:</u></em>

$\frac{Length}{Perimeter } = \frac{50}{170}\\\\\frac{Length}{Perimeter } = \frac{5}{17}$

Thus ratio of length to perimeter of pool is 5 : 17

6 0

3 years ago

Help what is the answer for this

grandymaker [24]

Answer:

A) <SQT = 36 degrees

B) <QRW = 36 degrees

C)<PRV = 72 degrees

Step-by-step explanation:

A) <SQT = 36 degrees (< SQT and < PQR are<em> vertically opposite angles</em>, and vertically opposite angles are equal)

B) <QRW = 36 degrees ( <QRW and < SQT are <em>corresponding angles</em> since they lie on the same side of the transversal across the parallel lines. Corresponding angles are equal)

C)<PRV = 72 degrees( <PRV is the <em>exterior base angle </em>to < PQR and exterior base angles, are always twice their interior correxpondents)

8 0

3 years ago

What is the factorization of 49b2 − 81?

Ann [662]

Answer:

Step-by-step explanation:

49b² - 81 = (7b)² - 9 ²

by identity : 49b² - 81 = (7b - 9)( 7b + 9)

5 0

3 years ago

Read 2 more answers

A tennis court has a length of (5x+7) and a width of (3x-3).

Oxana [17]

15x^2-15x+21x-21
15x^2+6x-21 is the answer

7 0

3 years ago