We know that the perimeter of a rectangle is equal to 2(width) plus 2(length). Then, we can say that the width is equal to x and the length is equal to 1.5x.
Let's solve for x.
75 = 2(x) + 2(1.5x)
75 = 2x + 3x
75 = 5x
x = 15 meters
Let's now find the length and width.
width = x = 15
length = 1.5x = 22.5
Now that we have the length and width, we can find the area. The formula for the area of a rectangle is length x width.
The medium sized orange would have 62 calories. To divide by 1/5, which in decimal form is 0.2, you just multiply 310 by 0.2, therefore, giving you 62. Hope this helps!
