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daser333 [38]
3 years ago
12

Amanda is 4 year older than Caroline. David is 2 years less than double Amanda’s age. Kene is 12 years younger than David. Toget

her these four are 136 years old. How old is each person?
Mathematics
1 answer:
Sloan [31]3 years ago
3 0
A is 34
C is 17
D is 66
K is 54
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Krystal left the hardware store and traveled toward the recycling plant at an average speed of 61 mph. Scott left at the same ti
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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)

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We know that the formula for distance is:

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So,

d = vK * t + vS * t

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vS = velocity of Scott = 65 mph

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Therefore:

252 = 61 t + 65 t

126 t = 252

t = 2 hours

 

Therefore Scott needs to travel for 2 hours.

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