Answer:
C
Step-by-step explanation:
C) 3:1 and 9:3
Because when you simplify 9/3, it becomes 3/1 Hence, 3:1
Second question:
1/32 times 60 min = 1.875 min
34 gallons / 1.875 min = 18 gallons per minute
Third question:
b) 1152 grams
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Answer:
The surface area is divided by 4.
Step-by-step explanation:
Surface area of a sphere is 4πr².
When the diameter is 28 the radius is 14. So: 4π(14)² = 784π
If you cut the diameter in half you get 14. The radius is now 7.
4π(7)² = 196π.
784/4 = 196 so divided by 4.
Answer: 12
To get 12 you multiply 20%×60 and get 12.
Note: When finding the answer to these types of problems, multiply the percent times the number.
Answer:
113.04 sq. in.
Step-by-step explanation:
If the diameter of the circle is 12", then the radius is 6" (half the diameter), and the area "A" is (approximately) 3.14 * 6^2. The calculation is approximate because 3.14 is a rounded value for pi.
