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3 years ago

There are 40 boys in the club. the ratio of girls to boys is 2 to 5. how many girls are in the club

Mathematics

1 answer:

cricket20 [7]3 years ago

4 0

2/5 = 40/x
40/2 = 20
20 * 5 = 100
Girls = 100
2/5 = 40/100

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4 years ago

Set up an equation and solve the following problem.

nordsb [41]

Answer:

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The speed of Kent is 46 miles per hour .

Step-by-step explanation:

Given as :

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The time taken by Kent = T hour

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Time = $\dfrac{\textrm Distance}{\textrm Speed}$

So, t = $\dfrac{\textrm d miles}{\textrm s miph}$

Or, t = $\dfrac{\textrm 210 miles}{\textrm s miph}$

For Kent

Time = $\dfrac{\textrm Distance}{\textrm Speed}$

So, T = $\dfrac{\textrm D miles}{\textrm S miph}$

Or, T = $\dfrac{\textrm 230 miles}{\textrm (s + 4) miph}$

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So, t = T

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Or, 210 × s + 210 × 4 = 230 × s

Or, 210 × 4 = 230 × s -210 × s

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So, The speed of Dave = s = 42 miles per hour

Again

The speed of Kent = S = (s + 4 ) miph

i.e S = 42 + 4

or, S = 46 miph

So, The speed of Kent = S = 46 miles per hour

Hence,The speed of Dave is 42 miles per hour

And The speed of Kent is 46 miles per hour . Answer

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3 years ago