Question

The equation y = 0.625x – 2.7 can be used to predict the number of minutes, y, it takes Kahlil to check x emails. On Monday, Kahlil spent 25 minutes checking emails. On Tuesday, he checked 35 emails. Which is an accurate comparison?

He spent 6 minutes more checking emails on Tuesday.
He spent 6 minutes more checking emails on Monday.
He spent 9 minutes more checking emails on Tuesday.
He spent 9 minutes more checking emails on Monday.

Answer 1

its b

Step-by-step explanation:

Answer 2

He spent 6 minutes more checking emails on Monday

Step-by-step explanation:

we have

`y=0.625x-2.7`

where

x ----> the number of emails

y ----> the number of minutes

we know that

On Tuesday, Kahlil checked 35 emails

so

For x=35

substitute in the equation and solve for y

`y=0.625(35)-2.7`

`y=19.175\ minutes`

Round to the nearest minute

`y=19\ minutes`

Compare the times

On Monday, Kahlil spent 25 minutes

On Tuesday, Kahlil spent 19 minutes

25-19=6 minutes

therefore

He spent 6 minutes more checking emails on Monday