Joanne had $115 to spend at the mall. She spent 23% of that money on a shirt. Joanne spent $___ on the shirt.
2 answers:
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Answer:
The line equation is given as: 3 y = 2 x - 9
Step-by-step explanation:
Here, Y intercept is at point ( 0.-3)
So, at x = 0, y = -3
or, C = -3
Also, the point on the equation line is (x,y) = (-9,-9)
Now, by <u>SLOPE INTERCEPT FORM</u> of a line equation,we get:
y = m x + C : m = slope of line ......... (1)
So, substituting the values of C and (x,y) , we get:
-9 = m (-9) + (-3)
or, -9 + 3 = - 9 m
or, m = -6/-9 = 2/3
or, m = 2/3
Now, substitute the value of m back in to the line equation (1)
Hence, the line equation is given as: 3 y = 2 x - 9.
Find the critical value or test statistic.
Find P(z > 2.25) using a normal distribution table
P(z > 2.25) = 0.0122
Find P(z > 2.25) using a normal distribution table
P(z > 2.25) = 0.0122