Lesson 21 Rational Equations Part 2

Lesson 21 Rational Equations Part 2

Open Ended

Multiple Choice

Kiran jogs at a speed of 6 miles per hour when there are no hills. He plans to jog up a mountain road, which will cause his speed to decrease by r miles per hour. Which expression represents the time, t, in hours it will take him to jog 8 miles up the mountain road?

• $t=\frac{8-r}{6}$

• $t=\frac{8}{6+r}$

• $t=\frac{6+r}{8}$

• $t=\frac{8}{6-r}$

Multiple Choice

• $g\left(x\right)=x+\frac{10}{x}$

• $g\left(x\right)=1+\frac{10}{x}$

• $g\left(x\right)=x-\frac{10}{x+10}$

• $g\left(x\right)1-\frac{1}{x+10}$