Answer:
Step-by-step explanation:
1) Solve for 2x - y = 9
A. Solve for y.
2x - y = 9
B. Subtract 2x from both sides.
-y = 9 - 2x
C. Multiply both sides by -1.
y = -9 + 2x
D. Regroup terms.
y = 2x - 9
2) Substitute y = 2x- 9 into 4x² + 3y² - 2x + y = 16
A. Start with the original equation.
4x² + 3y² - 2x + y = 16
B. Let y = 2x - 9.
4x² + 3(2x - 9)² - 2x + 2x - 9 = 16
C. Simplify.
16x² - 108x + 234 = 16
3) Solve for x in 16x² - 108x + 234 = 16
A. Solve for x.
16x² - 108x + 234 -= 16
B. Move all terms to one side.
16x² - 108x + 234 - 16 = 0
C. Simplify 16x² - 108x + 234 - 16 to 16 x² - 108x + 218
16 x² - 108x + 218 = 0
D. Use the Quadratic Formula.
,
E. Simplify solutions.
4) Substitute into y = 2x - 9.
1) Start with the original equation.
y = 2x - 9
2) Let x =
3) Simplify
Your answer is:
This is because there are 40 boxes in total. The chance of a white box being handed out is 10/40. If a white box is handed out as a prize, there are going to be 39 boxes left, but only 9 of those 39 boxes would be white.
Ideally, tree diagrams should be used to solve such problems.
Answer:
Step-by-step explanation: Two solutions were found :
a =(4-√-24)/-2=2+i√ 6 = -2.0000-2.4495i
a =(4+√-24)/-2=2-i√ 6 = -2.0000+2.4495i
I think its 2x+11= 3x-22 not sure, its been awhile since ive done this
According to the problem it seems like jan drank 1/2 of the milk