Volume of cylinder
v = πr²
v = 22/7 x 21²
v = 1385.441 cm³
Answer:
18.1437
Step-by-step explanation:
divide the mass value by 2.205
Answer:
1/3
Step-by-step explanation:
Rolling a die has the possible outcomes of 1,2,3,4,5,6 = 6 total
P(3 or 5) = number of 3 or 5's / total
= 2/6
= 1/3
Let n be unknown number, then 1/5 of this number is 1/5n. When you add these two numbers, you get

You know that this sum is equal to 24, so

1. Multiply this equation by 5:

2. Solve it:

Answer: n=20, correct choice is B.
Step-by-step explanation:
x-5x-6=0
x-5x=6+0
4x=6
x=6
4
x=3
2
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