Answer:
(x, y) = (4, 1)
Step-by-step explanation:
The coefficients of x are the same, so we can cancel the x-terms by subtracting one equation from the other. We want to do this so the resulting y-coefficient will be positive. That means we want to subtract the second equation from the first:
(-2x +y) -(-2x -4y) = (-7) -(-12)
5y = 5 . . . . . . . . simplify
y = 1 . . . . . . . . divide by 5
-2x +1 = -7 . . . . . substitute for y in the first equation
-2x = -8 . . . . . subtract 1
x = 4 . . . . . . divide by -2
The solution is (x, y) = (4, 1).
_____
A graphing calculator easily verifies the solution.
Hi!!!!!!!!!!!!!!!!! Hope I help!
The correct answer is.............................
10^10^10! I think hope so
Since she flipped the coin 20 times and got 4 heads and 6 tails, you put it as a fraction. So, it's 4/16 if you simplify 4 over 16 you get 1/4. You get this by dividing by 4 both numbers.
Answer:
The answer is B
Step-by-step explanation:
Answer:
1/21
Step-by-step explanation:
The probability of finding the first person without a license is 2/7. When he is "eliminated" there will be one less person out of the 7 (so 6 people in total left), and only one person without a license. the new probability is now 1/6. You then multiply these 2 fractions. 1/6 times 2/7= 1/21. The probability that the inspector will pick the 2 without a license is 1/21
