Using the graph of seniors in math classes, if there are 432 students in the senior class, how many were in each math course? Identify each course and the number of seniors in it. Show your work.

Advanced Algebra - 144

Consumer Math - 155

Geometry - 116

Precalculus - 17

Step-by-step explanation:

Advanced Algebra - 432x.33=144 (or 1/3 of 432)

Consumer Math - 432x.36=155

Geometry - 432x.27=116

Precalculus - 432x.04=17

144+155+116+17=432

These numbers aren't precise, but if your question is typed correctly, then there had to be some rounding and truncating.

step-by-step explanation: the answer is 27. first multiply .32 by 25 which equals 8. then add 8 to 25 which gives you 33. then you subtract that from 6 since she gave 6 to her brother.

,, add !

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240