Answer:
The runner’s time is 3.18 minutes
Step-by-step explanation:
Mathematically;
z-score = (x-mean)/SD
In this question, we have the z-score but we want to calculate x
From the question
z-score = -1.76
mean = 4.5 minutes
SD = 0.75 minutes
x = ?
Substituting these values, we have that
-1.76 = (x-4.5)/0.75
0.75(-1.76) = x - 4.5
-1.32 = x - 4.5
x = 4.5 -1.32
x = 3.18
Answer:
7
Step-by-step explanation:
If it cuts diagonally, then it should be triangular shaped, due to the pyramid's shape! Hope this helped! Brainliest is always appreciated!
Answer:
$72
Step-by-step explanation:
Let t = Tires
Let O = Oil change
<u>Given the following data;</u>
Oil change, O = $47
<em>Translating the word problem into an algebraic equation, we have;</em>
4t + O = $335
<em>Rearranging the equation, we have;</em>
<em>Substituting the value of O;</em>
t = 72
<em>Therefore, the cost of each tire is $72.</em>
The statement is true, but the inverse is false.
