Answer:
275 ft³
Step-by-step explanation:
Given the ratio of radii of 2 similar figures = a : b , then
ratio of volumes = a³ : b³
Here the ratio of radii = 5 : 2 , so
ratio of volumes = 5³ : 2³ = 125 : 8
Calculate the volume (V) of A using proportion
= 
= 
( cross- multiply )
V = 275 ft³
That is the volume of figure A = 275 ft³
Answer:
5 rolls of ribbon are needed
Step-by-step explanation:
To find how much ribbon you'll use, multiply 80 by 2 3/4. To multiply them, convert 2 3/4 into an improper fraction 11/4.
Multiply: 80 * 11/4 = 880/4 = 220
This means you need 220 total feet of ribbon. Since each roll has 50 feet, you'll need 5 rolls or 250 feet to wrap every box.
Formula for circle:
(x - h)^2 + (y - k)^2 = r^2
Where (h, k) is the cry and r is the radius.
(x - - 1)^2 + (y - - 1)^2 = 1^2
(x + 1)^2 + (y + 1)^2 = 1
<span>the 32oz is more expensive per oz. by $.01 per oz.</span>
