Answer:
x = 55 or x = 15
Step-by-step explanation:
Solve Absolute Value.
We know that either 1/5x - 7 = 4 or 1/5x - 7 = -4.
1/5x - 7 = 4
1/5x - 7 + 7 = 4 + 7
1/5x = 11
1/5x (5) = 11 (5)
x = 55 (one possibility)
1/5x - 7 = -4
1/5x - 7 + 7 = -4 + 7
1/5x = 3
1/5x (5) = 3 (5)
x = 15 (second possibility)
You can use the formula y1-y2=m(x1-x2)
to find m, you just do (y2-y1)/(x2-x1) so....
(115-80)/(80-40)= 35/40= 7/8
then plug it into the point slope equation:
y-115=7/8(x-80)
y-115=7/8x-70
y= 7/8 x + 45
Let x be the price for each night and y be the price for each meal. Then, express the statements into mathematical equations:
Choice A: 3x + y = 250
Choice B: 3x + 6y = 330
Subtract both equations, the difference would be -5y = -80
-5y = -80
y = -80/-5
y = $16 per meal
3x + y = 250
3x + 16 = 250
3x = 250 - 16
3x = 234
x = 234/3
x = $78 per night
The answer is D.
Hello!
It is going to be half the area of the rectangle:
(8 x 10) / 2 = 80 / 2 = 40
The area of the shaded region is 40 in^2.
Hope this helped :))
The correct answer is d.joint probability.
<h3>
What is joint probability?</h3>
Given two random variables that are defined on the same probability space,the joint probability is a statical measure that calculates the likelihood of two events occuring together and at that same point of time.
In the given question it is said that the probability of both sample information and a particular state of nature occurring simultaneously.
So, when the state of nature of sample remains unchanged it will not affect the sample so does the output.
Hence when without affecting the nature of sample the sample information remains intact. If the nature of sample is changed the required out will also change.
⇒Since both the measure are occuring simultaneously without changing the nature of sample.
hence, it is joint probability.
whereas,
- In conditional probability, the possibility of the event depends on the previous events,
- In marginal probability the outcome is independent of another variable, and
- in unconditional probability the chances that a particular even will occur without any external circumstances.
Hence, in the given condition the correct answer is d. joint.
More about joint probability :
brainly.com/question/27098956
#SPJ1
