Answer:
x = ±
Step-by-step explanation:
Given
x² - 7x + 9 = 0 ( subtract 9 from both sides )
x² - 7x = - 9
Solve using the method of completing the square
add ( half the coefficient of the x- term)² to both sides
x² + 2( - )x + = - 9 +
(x - )² = ( take the square root of both sides )
x - = ± = ± ( add
x = ± =
Let x be a variable.
Using the ratio and the given number of 117, we can create the following formula:
1x + 3x + 9x = 117, where 3x is the cups of onion
Simplify this equation.
13x = 117
Divide both sides by 13
x = 9
We want to solve for 3x, so multiply both sides by 3
3x = 27
As I started earlier, 3x is how many cups of onions is needed; thus, 27 is our answer. Hope this helps! :)
Answer:
k= -4
Step-by-step explanation:
Answer:
I got 2 as an answer
Step-by-step explanation:
Answer:
1.971
Step-by-step explanation:
7.211 - 5.24 = 1.971