Answer:
18
Step-by-step explanation:
Mark is 18 years old.
Answer:
R = sqrt 3 * (V /( pi * h))
V = 62.8
pi = 3.14
h = 15
now we sub
R = sqrt 3 * (62.8 / (3.14 * 15)
R = sqrt 3 * (62.6 / 47.1)
R = sqrt 3 * 1.33
R = sqrt 3.99
R = 1.9 rounds to 2 inches <===
Step-by-step explanation:
you cant factorise both of them as they have nothing in common
As per the problem
A first number plus twice the second number is 7
Twice the first number plus the second totals 20
Let the first number is x and second number is y then we can write