Please answer this! Brainliest and thank you! Quickly please! Mary Kay is driving from Tampa to Dallas. The distance between the

Question

3 years ago

5

Please answer this! Brainliest and thank you! Quickly please! Mary Kay is driving from Tampa to Dallas. The distance between the

2 cities is 1,022 miles. Mary Kay’s average rate of speed is 45 mph. The following function represents how many miles Mary Kay has left on her trip after t hours, f(t) = 1022 -45t. After how many hours of driving will Mary Kay be 572 miles from Dallas?

Mathematics

2 answers:

Alenkinab [10] · Answer 1 · 2022-02-12T11:04:45+03:00

Alenkinab [10]3 years ago

3 0

Answer:

70 mph it would be 8 hours and 10 minutes

Step-by-step explanation:

Phoenix [80] · Answer 2 · 2022-02-12T12:57:34+03:00

Answer:

10 hours

Step-by-step explanation:

The equation will change from f(t) = 1022 - 45t to 572 = 1022 - 45t. First subtract 1022 from both sides simplifying the equation to -45t = -450. Then, divide both sides by -45 to get the answer t = 10. Check your answer by putting it back into the equation. 572 = 1022 - 45(10) which goes to

572 = 1022 - 450 which goes to 572 = 572.