Marcus said the ratio of the number of hours he spent doing homework to playing basketball was 2:3. Which statement describes this ratio? A.
Marcus does homework or plays basketball for 2:30 hours.

B.
There are 2 to 3 hours each night that Marcus does homework or plays basketball.

C.
For every 2 hours Marcus does homework, he plays basketball for 3 hours.

D.
For every 3 hours Marcus does homework, he plays basketball for 2 hours.

it’s supposed to be -4+45=41

step-by-step explanation:

(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

answer: i think you should do the math and pay attention in class : )

step-by-step explanation:

that is truly what   think but if i get the answer i will