Question

11) If it takes 2 minutes to fill your gas tank 2/3
full, how long does it take to fill it up?
a 6 minutes
b. 4 minutes
c 5 minutes
d. 3 minutes

Answer 1

Answer:

3 minutes to fill it up

Step-by-step explanation:

1 minute per 1/3

Answer 2

Answer:

3 minutes

Step-by-step explanation:

We can use ratios to solve

1 is when it is full

2 minutes    x minutes

-------------- = ------------

2/3 full           1 full

Using cross products

2 *1 = 2/3 *x

2 = 2/3 x

Multiply each side by 3/2 to isolate x

2 *3/2 = 3/2 *2/3x

3 =x