80p=pr^2+p(2r)^2
80p=pr^2+4pr^2
80=r^2+4r^2
80=5r^2
16=r^2
r=4 for the smaller circle´s radius, and 8 is the larger circle´s radius.
Have a nice day, I hope this was helpful :D
There you go it’s not Oscar but it’s the same question
1 - 2/3 = 1/3
1+ (-1/3) = 2/3
Answer:
Step-by-step explanation:
The drawing of the garage is a smaller representation of the actual garage. A garage is drawn using a scale of 2 2/3 inch = 6feet. Let us first convert 2 2/3 inch to improper fraction. It becomes 8/3 inch.
Let us determine the unit measurement.
If 6feet = 8/3 inch,
1 foot will be 8/3 ÷ 6 = 8/3×1/6
= 8/18 inches. Therefore
if the actual height is 68 ft , then, the height of the garage on the drawing will be
68 × 8/18 = 272/9 = 30 2/9 inches
