Question

Nadia takes 6 8/9 minutes to drive to her local shopping center from her home. She spends 1/7 of this time waiting at traffic lights. Find the number of minutes she spends waiting .

Answer 1

Answer:

She spends 0.98 min, that is, aprroximately 1 min waiting at traffic lights.

Step-by-step explanation:

The length of the drive is 6 8/9 minutes

As a fraction, this is:

$6 + \frac{8}{9} = \frac{62}{9}$

She spends 1/7 of this time waiting at traffic lights.

This is 1/7 of 62/9. So

Time waiting:

$t = \frac{62}{9} \times \frac{1}{7} = \frac{62}{63} = 0.98$

She spends 0.98 min, that is, aprroximately 1 min waiting at traffic lights.