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bixtya [17]
2 years ago
12

A netball team has 7 boys and 4 girls. The percentage of the girls in the class

Mathematics
2 answers:
Paraphin [41]2 years ago
6 0

Answer:

63.7%

Step-by-step explanation:

11 people in total

9.1% per person

7* 9.1=63.7

vladimir1956 [14]2 years ago
3 0
Sum of boys and girls equals 100% working below. hope it helps

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Determine the average speed of the current in a river if a boat moves at 20 miles/hour in still water and takes 3 hours to trave
Taya2010 [7]

The speed of the current in a river is 6 miles per hour

<em><u>Solution:</u></em>

Given that,

Speed of boat in still water = 20 miles per hour

Time taken = 3 hours

Distance downstream = 78 miles

To find: Speed of current

<em><u>If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then:  </u></em>

Speed downstream = (u + v) km/hr

Speed upstream = (u - v) km/hr

<em><u>Therefore, speed downstream is given as:</u></em>

\text{ speed downstream } = \frac{distance}{time} = \frac{78}{3}\\\\\text{ speed downstream } = 26 \text{ miles per hour }

We know that,

Speed downstream = (u + v)

26 = 20 + v

v = 26 - 20

v = 6 miles per hour

Thus speed of the current in a river is 6 miles per hour

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3 years ago
Plz help by the way I have iPhone 11
Anon25 [30]

Answer:

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Step-by-step explanation:

3 groups of 4...............

4 0
3 years ago
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Helen [10]

Answer:

9)

Domain {-2, -1, 1}

Range {-4, -2, 2, 4}

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Range {-2, 0, 2, 3}

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8 0
2 years ago
Solve for x<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B2%7D%20%20%2B%20%20%5Cfrac%7B3%7D%7B4%7D%20%20%3D%2010" id=
Degger [83]

Answer:

x = 18.5

Step-by-step explanation:

Given

\frac{x}{2} + \frac{3}{4} = 10

Multiply through by 4 to clear the fractions

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2x = 37 ( divide both sides by 2 )

x = \frac{37}{2} = 18.5

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3 years ago
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How can you find the value of x? in 3x= 2 1/4
tino4ka555 [31]

Answer:Tap for more steps... By the Sum Rule, the derivative of x 4 + 3 x 2 x 4 + 3 x 2 with respect to x x is d d x [ x 4] + d d x [ 3 x 2] d d x [ x 4] + d d x [ 3 x 2]. Differentiate using the Power Rule which states that d d x [ x n] d d x [ x n] is n x n − 1 n x n - 1 where n = 4 n = 4.

Step-by-step explanation:

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