Answer:
i got 34:34:112
Step-by-step explanation:
sorry im bad at explaining things but i added a picture
Fractions what does 4/14 equals
1 answer:
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9514 1404 393
Answer:
(x, y) ≈ (1.1642, 3.3930) and (3.4358, -0.39297)
Step-by-step explanation:
Solve the first equation for y, then substitute into the second.
5x +4/y = 7
4/y = 7 -5x
4/(7 -5x) = y
Then the second equation becomes ...
4x +x/(4/(7 -5x)) = 5
4x +x(7 -5x)/4 = 5
16x +7x -5x^2 = 20 . . . . . multiply by 4
5x^2 -23x +20 = 0 . . . . . put in standard form
We can use the quadratic formula to solve this.
x = (23±√((-23)² -4(5)(20)))/(2(5)) = (23±√129)/10
x = 2.3 ±√1.29 ≈ {1.1642, 3.4358}
y = 4/(7 -5x) = {3.3930, -0.39297}
Solutions are (x, y) ≈ (1.1642, 3.3930) and (3.4358, -0.39297).
Answer: Probability = 44%
Step-by-step explanation:
To find the probability of finding 2 black balls in a row, we first need to find the probability of finding 1 black ball at a time.
To do that, we need to divide the amount of total black balls by the number of total balls.
Black balls = 6
Total balls = 3 + 6 = 9
6 divided by 9 = 0.(6)
If you multiply 0,(6) by 100%, it will give you 66% (rounded) of getting a black ball.
Now, to find the chances of getting 2 black balls in a row, we need to multiply by
. What we are doing is squaring the chances of getting one black ball, by the number of times we want to get it.
That is equal to 0,(4)
Multiply 0,(4) by 100%, and it will give you 44%(rounded) chances to get a black ball 2 times in a row.
Probability = 44%
Hope I Helped!