Question

Mr. Jeffords starts a diet and exercise plan to lose weight. He currently weighs 214 pounds but would like to weigh 190 pounds. His doctor suggests he will lose 1.5 pounds per week by following the plan. Which number line represents the period of time since starting the plan, in weeks, when Mr. Jeffords will still weigh more than 190 pounds?

Answer 1

Given:

Mr Jeffords weighs 214 pounds.

He would like to weigh 190 pounds.

He loses 1.5 pounds a week.

Find:

The number line

Solution:

Find the number of weeks needed for him to achieve his targeted weight:

Pounds needed to lose = 224 - 190

Pounds needed to lose =34

Number of weeks needed = 34 ÷ 1.5

Number of weeks needed = 22.67 weeks

State the number line

Let x be the week that he was in

x < 22.67

Answer: x < 22.67

Answer 2

Answer:

X < 22.67......................