Guests to a wedding had to choose among three entree options: steak, chicken, or pasta primavera. of the 128 guests who responded, 63 chose steak and 25 chose pasta primavera. what percent chose chicken?

31.25%

Step-by-step explanation:

Take 128-63=65, and then 65-25=40. Hence now you take

100%/ x%= 128/40

x%/ 100%= 40/ 128

> x= 31.25%

Therefore, 40 is 31.25% of 128, so this means that 31.25% of the people at the weeding chose chicken. Hope this helped!

18.75 gallons

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