Read the scenario and select the equations that model the situation. Kim and Eduardo are selling fruit for a school fundraiser. Customers can buy small and large boxes of tangerines. Kim sold 12 small boxes of tangerines and 6 large boxes of tangerines for a total of $276. Eduardo sold 9 small boxes of tangerines and 11 large boxes of tangerines for a total of $337. Find the cost of one small box of tangerines and the cost of one large box of tangerines.

A) 9S + 11L = 276

B) S + L = 276

c)12S + 6L = 337

D) 12S + 6L = 276

F) 9S + 11L = 337

G) S - L = 337

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are

(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