You are designing a metal sculpture that will be placed in front of your school. You sketch an initial design with a scale of 1 cm = 3 feet. The design shows that the sculpture has a length of 15 feet.
After reviewing your design, the principal asks you to use the same drawing, but change the scale to 1 cm
= 6 feet.
What will be the length of the sculpture using the new scale?

36

step-by-step explanation:

answer: 323 is how many she has ☃☃⛄❄

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

the answer is $42.96

step-by-step explanation: