101k views
2 votes
A student's grade goes from a 95 to a 65 in 3 weeks. Calculate

the student's rate of change. Be sure to label your answer. *

1 Answer

7 votes

-10grade/week

Step-by-step explanation:

Given parameters:

Initial grade = 95grade

Final grade = 65grade

Time = 3weeks

Unknown parameter:

Rate of change of grade = ?

Solution:

Rate is defined as the change of a quantity with time.

Rate of change of grade =
(Final grade - Initial grade)/(Time)

Rate of change of grade =
(65 - 95)/(3) =
(-30)/(3)

Rate of change of grade = -10grade/week

The rate of change of the student's grade is -10grade/week. It implies that the grade of the student reduces by 10unit per week.

User Sherita
by
8.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories