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kaheart [24]
3 years ago
5

At a concert the ratio of adults to children is 4:5. There are 720 children in a concert how many adults are there?

Mathematics
2 answers:
zepelin [54]3 years ago
7 0

Answer:

576 adults

Step-by-step explanation:

The 5 part of the ratio relates to 720 children, then

720 ÷ 5 = 144 ← value of 1 part of the ratio , then

4 parts = 4 × 144 = 576 ← number of adults

QveST [7]3 years ago
3 0

Answer:

576

Step-by-step explanation:

Adults : Children

      4  :  5

     x   :  720

Let the number of adults be x.

Use cross multiplication.

  4  :  5\\      x   :  720\\

4 *720=5*x

\frac{4*720}{5} =\frac{5x}{5}

4 × 144  = x

576 = x

Hope this helps you.

Let me know if you have any other questions :-)

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contestants in a dance marathon rest for the same amount of time every hour. a couple rests for 27 minutes in 6 hours. how long
julsineya [31]
In the given question, there are several important information's that needs to be noticed. based on these information's the correct answer to the question can be easily deduced. It is already known that the contestants rest for the same amount of time every hour. In 6 hours they rest for 27 minutes. The 6 hours has to be converted to minutes first.
Then 6 hours = (6 * 60) minutes
                       = 360 minutes
So we have to first determine the amount of rest each contestants take in 1 hour.
Then
In 360 minutes the couple rests for a total time = 27 minutes
In 60 minutes the couple will rest for = (27/360) * 60
                                                           = 4.5 minutes
So the couple rests for 4.5 minutes in 1 hour
Then
In 8 hours the couple will rest for = (8 * 4.5) minutes
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The couple will rest for 36 minutes in 8 hours.
6 0
3 years ago
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EastWind [94]
A b^3
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6 0
3 years ago
Make p the subject in m=pq+rq(2)​
tiny-mole [99]

Answer:

Step-by-step explanation:

m=pq+rq(2)​

Opening bracket

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3 years ago
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12345 [234]

Answer:

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Step-by-step explanation:

Area of the shaded area = area of semi-circle - area of the triangle

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Area = ½ × 34 × 17

Area = 289 cm²

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3 years ago
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alekssr [168]
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