V = πR²h = π*R²*3
27π = 3πR²
R² = 9
R = 3
Diameter = 3*2 = 6cm
Answer:
Step-by-step explanation:
Given condition
y = x + 5
When x = - 1
y = - 1 + 5 = 4
when x = 0
y = 0 + 5 = 5
when x = 1
y = 1 + 5 =6
hope it helps :)
We can use these variables:
A = number of ounces for solution A
B = Number of ounces for solution B
A + B = 20
Now, we can use decimal conversions.
0.65A + 0.80B = 0.70(120)
Next step: We substitute A into 120 - B to show their relationship.
0.65(120 - B) + 0.80B = 84
Now onto the next equation:
78 - 0.65B + 0.80B = 84
0.80 - 0.65 = 0.15, so…
0.15B = 84 - 78
0.15B = 6
B = 6 divided by 0.15
B = 40 ounces
To find A, we can simply plug B into the starting equation.
A = 120 - 40
A = 60 ounces
Your final answer: The scientist should use 60 ounces of solution A and she should use 40 ounces of solution B. Yeah
Answer:
66.67% or 2/3
Step-by-step explanation:
18 = 27x
x=18/27
x = 2/3
18 is 66.67% or 2/3 of 27
The correct answer is C 17 units