Your class grade consists of 40% homework, 25% quizzes and 35% final exam. suppose you have earned 95% in homework and 84% in quizzes entering the final exam. what percentage do you have to earn in the final in order to have an 87% overall percentage?

The earning would be approximately 79.29 % in the final exam

Step-by-step explanation:

Given,

In class grade the percentage of homework = 40 % = 0.40 ,

Percentage of quizzes =  25 % = 0.25,

Percentage of final exam = 35 %=0.35,

Also, there is an earning of 95% in homework and 84% in quizzes entering the final exam,

⇒ Earning in homework = 95 % of 0.40,

And, earning in quizzes = 84 % of 0.25

Let x be the percentage do you have to earn in the final in order to have an 87% overall percentage,

Hence, the earning would be approximately 79.29 % in the final exam in order to have an 87% overall percentage.

none of the option is correct.

step-by-step explanation:

it says to find which expression equals 9^3 sqrt 10 = ?

9^3 sqrt 10 = 729 sqrt 10.

checking option a. 5 sqrt 10 + 4 sqrt 10

5 sqrt 10 + 4 sqrt 10

= 9 sqrt 10.

checking option b. 5^3 sqrt 10 + 4^3 sqrt 10

5^3 sqrt 10 + 4^3 sqrt 10

= 125 sqrt 10 + 64 sqrt 10

= 189 sqrt 10.

checking option c. 5 sqrt 10 + 4^3 sqrt 10

5 sqrt 10 + 4^3 sqrt 10

= 5 sqrt 10 + 64 sqrt 10

= 69 sqrt 10.

checking option d. 5^3 sqrt 10 + 4 sqrt 10

5^3 sqrt 10 + 4 sqrt 10

= 125 sqrt 10 + 4 sqrt 10

= 129 sqrt 10.

hence, none of the option is correct.