Question

Dominick is training for a race. He spends 0.75 hours running each time he runs and 1.5 hours swimming each time

he swims. This week, he spent more than 6 hours training for the race. Which graph represents his possible training
times this week?

Answer 1

The possible graph is "A". A further explanation is given below.

Explanation:

The given values are:

Dominick spends on running

= 0.70 hours

He spends on swimming

= 1.5 hours

This week,

Dominick spends more than six hours.

If,

Number of runs be "x".

Number of swimming be "y".

then,

⇒
`0.75x+1.5y>6`

⇒
`75x+150y>600`

⇒
`x+2y>8`

Therefore,
`x+2y=8`

x = 0

y = 4

So the above is the correct answer.