If train a is going 50 mph and train b is going 30 mph, train a starts 500 miles away from train b, and they are traveling in opposing directions, at what point will train b reach train a?

   after 6 hours 15 minutes, they will meet at a point 187.5 miles from train B's start

Step-by-step explanation:

Assuming the trains are traveling toward each other, they are closing the gap at the rate of 50+30 = 80 miles per hour. Then there will be no gap left after ...

  (500 mi)/(80 mi/h) = 25/4 h = 6.25 h . . . time until trains meet

__

In that time, Train A will have traveled ...

  (50 mi/h)(6.25 h) = 312.5 mi . . . . distance from A's start

and Train B will have traveled ...

  (30 mi/h)(6.25 h) = 187.5 mi . . . . distance from B's start

___

The B will reach A at a point 3/8 of the distance from B to A, 187.5 mi from B's start.

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5

r = 78539458390583095803458309458039485093485 or just 3

step-by-step explanation: