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Kipish [7]
3 years ago
9

A certain class has 24 students. Which of the following could NOT be the ratio of boys to girls?

Mathematics
2 answers:
victus00 [196]3 years ago
5 0
The ratio of 2:3 will not work. this is because when you add up all the parts of the ratio it should make a factor of 24. 2+3=5 which will not divide evenly into 24 whereas all the others will
Anuta_ua [19.1K]3 years ago
4 0
2:3 is the answer to your question
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tiny-mole [99]

Since Krystal and Scott is heading on opposite directions, therefore the distance between the two would be the sum of their distances from where they left, so:

total distance (d) = distance covered by Krystal (dK) + distance covered by Scott (dS)

d = dK + dS

 

We know that the formula for distance is:

distance = velocity * time

 

So,

d = vK * t + vS * t

where

vK = velocity of Krystal = 61 mph

vS = velocity of Scott = 65 mph

d = 252 miles

 

Therefore:

252 = 61 t + 65 t

126 t = 252

t = 2 hours

 

Therefore Scott needs to travel for 2 hours.

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3 years ago
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xxTIMURxx [149]

Answer:

ET = 80/A^2

Step-by-step explanation:

First, isolate the variables that you need, which is E and T, using the two equations you were given.

EA = 8

E = 8/A (divide A on both sides to isolate E)

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T = 10/A (divide A on both sides to isolate T)

Now, substitute.

ET --> (8/A) x (10/A) = 80/A^2

4 0
2 years ago
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Answer:

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A is answer
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