Question

Last week Forrest cut the grass exactly 3 times. It takes him between 55 and 75 minutes per cut.

CWrite an inequality to model all of the possible amounts of time (t) Forrest could have spent
cutting the lawn last week. Show or explain all your work.

Answer 1

Answer: 165 ≤ t ≤ 225

Step-by-step explanation:

If he mowed the lawn exactly once, then 55 ≤ t ≤ 75 describes all the possible values of t. Basically t is between 55 and 75 inclusive of both endpoints.

Multiply each value by 3

55*3 = 165

75*3 = 225

That's how we end up with 165 ≤ t ≤ 225 to represent the possible span of time values where he mowed the grass three times. His fastest possible time is 165 minutes (2 hr, 45 min) and his slowest possible time is 225 minutes (3 hr, 45 min).