A fun walk is 8 km long. Junice has walked 3 km and Dineo has walked 4 km. a) How far must Junice walk to finish? b) What fraction of the fun walk did Junice complete? c) How long will it take Junice

$$8 \text{ km} - 3 \text{ km} = 5 \text{ km}$$

Junice must walk $\boxed{\text{5 km}}$ to finish the fun walk.

$$\frac{3 \text{ km}}{8 \text{ km}} = \frac{3}{8}$$

Junice completed $\boxed{\frac{3}{8}}$ of the fun walk.

$$\frac{8}{3} \text{ hours} = 2 \frac{2}{3} \text{ hours} = 2 \text{ hours} + \left(\frac{2}{3} \times 60\right) \text{ minutes} = 2 \text{ hours and } 40 \text{ minutes}$$

It will take Junice $\boxed{\text{2 hours and 40 minutes}}$ to finish the race.

$$8 \text{ km} - 4 \text{ km} = 4 \text{ km}$$

Dineo must walk $\boxed{\text{4 km}}$ to finish the fun walk.

$$\frac{4 \text{ km}}{8 \text{ km}} = \frac{1}{2}$$

Dineo completed $\boxed{\frac{1}{2}}$ of the fun walk.

$$\text{Time} = \frac{\text{Total Distance}}{\text{Pace}} = \frac{8 \text{ km}}{4 \text{ km/hour}} = 2 \text{ hours}$$

It will take Dineo $\boxed{\text{2 hours}}$ to finish the race.