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Which of the following scenarios represents the equation below:

15x + 35 = 25x + 40

A-Austin is competing in a bicycle race. He has traveled 15 miles and is maintaining a steady speed of 35 mph. Alexandra is competing in the same race. She had a flat tire and has only traveled 40 miles, but now she is maintaining a speed of 25 mph. At what point will the two bicyclists meet?

B-Big Dog Snowboards charges $15 for equipment rental plus $35 per hour for snowboarding lessons. Half-Pipe Snowboards charges $40 for equipment plus $25 per hour for lessons. After how many hours will the companies charge the same amount?

C-Claudia received 40 dollars for her birthday and deposits the money into her savings account. She plans to save an additional 25 dollars each month to add to her account. Maria received 35 dollars for her birthday and deposits the money into her savings account. She plans to save an additional 15 dollars each month to add to her account. When will the two girls have the same amount in their savings account?


D-Marco is draining his two aquariums that are the same size. One tank has 35 liters of water in it and is being drained at a rate of 15 liters per minute. The other tank has 25 liters of water in it and is being drained at a rate of 40 liters per minute. At what time will the tanks hold the same amount of water?

Sagot :

B. Because it’s the most compatible to the equation and the other don’t make sense, I hope it’s right