Lesson 21 Rational Equations Part 2

Lesson 21 Rational Equations Part 2

Fill in the Blank

 $x-1=\frac{x^2-4x+3}{x+2}$  Solve for x, type the answer only.

Fill in the Blank

 $\frac{4}{4-x}=\frac{5}{4+x}$  Solve for x, type the answer only.  Write fractions in the form 5/8

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

• $g\left(x\right)=x+\frac{10}{x}$

• $g\left(x\right)=1+\frac{10}{x}$

• $g\left(x\right)=x-\frac{10}{x+10}$

• $g\left(x\right)1-\frac{1}{x+10}$

Fill in the Blank

 $10=\frac{1+7x}{7+x}$  Solve for x write your answer only.

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 $0.2=\frac{6+2x}{12+x}$  Solve for x write your answer only.

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 $3.5=\frac{4+2x}{0.5-x}$  Solve for x write your answer only. Round to three decimal places.

Fill in the Blank

A softball player has had 8 base hits out of 25 at bats for a current batting average of 8/25=.320.

How many consecutive base hits does she need if she wants to raise her batting average to .400?