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Select the real world problem that could be solved using a proportion.

Sheila travels 210 miles in 3 hours.At this rate how far will she travel in 7 hours?

Sheila has 3 dogs and adopts 2 more.How many dogs does she have in total?

Shiela must pay 210 for a phone and then 70 each month for service.How much will she have paid after 7 months?

Shiela has 3 pens and 7 pencils.How many more pens does she need to make the number of pens and pencils she has equivalent?

Respuesta :

Answer:

Sheila travels 210 miles in 3 hours. At this rate how far will she travel in 7 hours?

Explanation:

  • Calculating how many dogs Sheila has would be an addition problem.
  • Calculating how much money Sheila will have paid in 7 months requires plugging 7 into the variable x for the equation 210+70x.
  • Calculating how many more pens Sheila would need is a subtraction problem.
  • Calculating how many Sheila will have traveled requires setting up a proportion in which (210)/(3)=(x)/(7). From there you would cross-multiply and then solve for x to get your answer.

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