Question

Martha wants to buy a new bike that costs $79, including tax. She currently has $15 saved. She began a dog walking business to earn the remaining money needed to buy the bike. She charges $5 for each dog she walks. What is the fewest number of dogs that Martha needs to walk to have enough money to buy the bike?
Help Me Please

Answers

Ms. Sue
(79 - 15) / 5 = ________ dogs

Remember, she can't walk a fraction of a dog.

Emmy
So the answer is 64/5=12.8 so basically it would be 12 or 13
Ms. Sue
Which is it? 12 or 13? Only one of these answers is correct.

Emmy
Its fewest which is 12
Ms. Sue
But 12 * 5 is 60. That isn't enough.

Emmy
Do 12*5+15=75.
Ms. Sue
Yes. But the bike costs $79.

She needs $64.

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