Set up an equation to solve.
$8.50x (since it is the rate of change) + $12 (flat fee) = total money earned (or y). In this case, we have the total, amount, and are looking for x. Plug $139.50 into the equation.
$8.50x + $12 = $139.50
Now, solve for x.
$8.50x + $12-12 = $139.50-12 > <em>$8.50x = $127.5</em>
$8.50/8.50x = $127.5/8.50 > <em>x = 15</em>
So, the correct answer is <u>D. Olivia babysat for 15 hours.</u>
Answer:
And we want to find this probability: . If we use the bayes rule we have this:
And if we solve we got:
And replacing we got:
Step-by-step explanation:
For this case we define the following notation:
A= A student will take loans to pay for their undergraduate education
B|A= A student will go to graduate school given that the student took loans to pay for their undergraduate education
And we have the following probabilities:
And we want to find this probability: . If we use the bayes rule we have this:
And if we solve we got:
And replacing we got:
Answer:
x=0
Step-by-step explanation:
x^2-8x-2=0
x=±3√2−4
Answer:
<em>Perimeter = 6x + 5.</em>
Step-by-step explanation:
The perimeter is the sum of the three sides.
Perimeter = 3x - 2 + (-5x) + 8x + 7
= 3x - 2 - 5x + 8x + 7
= 3x - 5x + 8x - 2 + 7
= 6x + 5.