Jeff is traveling from his home in salem at a constant rate of 50 mph. he has already traveled 20 miles. his sister jennifer is making the same trip but at a constant rate of 60 mph and has only traveled 5 miles. how long will it take jennifer to catch jeff. a) 1.5 b) 3 c) 1 d) 95

Answer    

Find out the  how long will it take Jennifer to catch Jeff.

To prove

Formula

let us assume that the distance be denoted by d .

let us assume that the time be denoted by t .

As given

Jeff is traveling from his home in Salem at a constant rate of 50 mph.

He has already traveled 20 miles .

As put the values in the formula

50t - 20 = d

(As jeff already travelled 20 miles distance.)

As given

His sister Jennifer is making the same trip but at a constant rate of 60 mph and has only traveled 5 miles.

than put the value in the formula

than the equation becomes

60t -5 = d

Than the two equation becomes

50t - 20 = d and 60t -5 = d

compare both the equation

50t - 20 = 60t -5

50t - 60t = 20 -5

- 10t = 15

t = -1.5

(As time cannot be negative.)

t = 1.5 hours

1.5 hours will it take Jennifer to catch Jeff.

Option (A) is correct .

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12

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step-by-step explanation: