Answer:
The two numbers are <u>15</u> and <u>6</u>.
Step-by-step explanation:
Given:
The difference between two numbers is 9.
The first number plus twice the other number is 27.
Now, to find the two numbers.
Let the first number be
And the other number be
So, the difference between two numbers is 9.
............(1)
As, given the first number plus twice the other number is 27.
According to question:
Substituting the value of from equation (1):
<em>Subtracting both sides by 9 we get:</em>
<em>Dividing both sides by 3 we get:</em>
The other number = 6.
Now, substituting the value of in equation (1):
The first number = 15.
Therefore, the two numbers are 15 and 6.
Answer:
3 19/20
Step-by-step explanation:
So...
The first step is to find a common denominator between the 2. The smallest common denominator is 20. So you would do 3/4 times 5/5 which is 15/20. (2 15/20)
1/5 times 4/4 = 4/20(1 4/20)
So the final step is to add them together
2 15/20 + 1 4/20= 3 19/20.
This is the most simplified answer you can get.
Answer:
The inverse is 1/2x -3/2
Step-by-step explanation:
y =2x+3
Exchange x and y
x = 2y+3
Solve for y, subtracting 3 from each side
x-3 = 2y+3-3
x-3 =2y
Divide each side by 2
(x-3)/2 = 2y/2
1/2x - 3/2 =y
The inverse is 1/2x -3/2
Answer:
30cm
Step-by-step explanation:
The formula for volume of a sphere is . If then r=30.