$4.50 per hour.
She worked 3 and a half hours. So since her total is $15.75 you'd divide that by 3.5, which works out to $4.50.
Hope this helps! :)
Answer:
84
Step-by-step explanation:
pretty sure
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).
Let <em>x</em> = 8.132132132... .
Then 1000<em>x</em> = 8132.132132132... .
Subtracting <em>x</em> from 1000<em>x</em> eliminates the fractional part, leaving you
999<em>x</em> = 8132 - 8 = 8124
Then
<em>x</em> = 8124/999 = 2708/333
Because is likely that the first outcome affected the second one, we can conclude that the events are dependent.
<h3>
When two events are independent?</h3>
Two events are independent if the outcome of one can't affect the outcome of the other.
Here, first, she chooses a blue marker from one box and then a yellow one from another, these are the two events.
Now, these are independent or dependent?.
Well, the fact that she chooses a blue marker first, means that she probably would not want to choose another blue marker for the second one. So yes, the first outcome does affect the second outcome, meaning that the events are dependent.
If you want to learn more about dependent and independent events, you can read:
brainly.com/question/1757299
