Answer: 1 1/14
Step-by-step explanation:
Answer:
18, 21 and 36
Step-by-step explanation:
The best way to solve this is to format the question as a series of equations, then solve them.
Let x = the smallest number, y = the middle number and z = the largest number:
z = 2x
y = x + 3
x + y + z = 75
We can now substitute the values of y and z in terms of x into the equation x + y + z = 75:
x + (x + 3) + (2x) = 75
Now, solve:
x + x + 3 + 2x = 75
4x + 3 = 75
4x = 72
x = 18
Therefore, the smallest number is 18, the middle number is 21 and the largest number is 36.
Answer:
he area that is un-shaded is (x-3)(x-6).
The entire area is (2x+2)(3x-4).
Area of the shaded region is:
(2x+2)(3x-4) - (x-3)(x-6) =
(6x2-2x-8) - (x2-9x+18) =
6x2-2x-8-x2+9x-18 =
5x2+7x-26 hopes this help btw (;
Answer:
v = 3
Step-by-step explanation:
7(v - 3) + 7v = 21
distribute the 7 into the parentheses
7v -21 +7v = 21
combine like terms
14v - 21 = 21
add 21 on both sides
14v + 21 - 21 = 21 + 21 which equals 14v = 42
divide both sides by 14 to isolate v
14v/14 = 42/14
v = 3
hope this helps :)
Volume of a cone = 1/3 r² π h
Volume of a cylinder = r² π h = 3 · V ( cone ) = 3 · 12 = 36 in³
Answer: C )
