Please help! Correct answer only please! Jarvis has the following averages in his math class:

Homework avg: 93

Quiz avg: 82

Test avg: 72

Final Exam: 60

If the teacher weights Homework at 10%, Quizzes at 30%, Tests at 40%, and the final exam at 20%, what is Jason's class average?

A. 75

B. 77

C. 79

D. 82

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract