Answer:
The equation you need for 3 is the volume of a sphere.
Then divide 12 by 2 to get the radius, which gives you 6, then insert this into the equation, and the answer you get for 3 is 904.78cm cubed. 904.8 (4 Significant figures) cm cubed.
D I’m I think I’m pretty sure hope it helps
Step-by-step explanation:
Miles = 15 1/10
Miles = 151/10 miles
Hour = 1/3 hour
Av = 151/10 miles / 1/3 hour
Av = 151/10 × 3 / 1/3 × 3
Av = 453/10 miles / hour
Av = 45,3 mil / h
Answer:
Kara's age = 15 years
Step-by-step explanation:
Let Kara's age = n years
Cassie's age = 2n - 3
Sum of their ages = 42
n + 2n - 3 = 42 {Combine like terms}
3n - 3 = 42 { add 3 to both sides}
3n = 42 +3
3n = 45 {Divide both sides by 3}
3n/3 = 45/3
n = 15
Kara's age = 15 years
