Answer:
Rocco originally had $240
Explanation:
Before we begin, note that the price of the putter is given AFTER the discount. This means that the value of the discount doesn't affect the solution.
Assume that the amount Rocco had originally is x
Now, we are given that:
price of putter = $48
Price of putter represents 20% of what Rocco had
This means that:
price of putter = 20% * amount Rocco had
48 = 20% * x
48 = 0.2x
x = 48 / 0.2
x = $240
This means that Rocco originally had $240
Hope this helps :)
Answer:
-3
Step-by-step explanation:
3x5=15
+1(2-4x5)=2-20-18
15-18=-3
Answer:
153.94cm²
Step-by-step explanation:
The equation is 51 = x + 120 × 0.30 that can find the monthly base fee charged by Chitchat wireless.
The equation representing the scenario will be formed through following components.
Total bill = monthly base fee + number of minutes × cost per minute
In the above mentioned equation, let us assume the monthly base fee to be x. Now, keep the values in formula to find the value of x.
51 = x + 120 × 0.30
Performing multiplication on Right Hand Side of the equation
51 = x + 36
Rewriting the equation according to x
x = 51 - 36
Performing subtraction on Right Hand Side of the equation
x = 15
Thus, the monthly base fee is $15.
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The variance for the sample is 25
For given question,
We have been given the sample size n = 21
and the sum of squares is SS = 500
We need to find the variance for the sample.
We know that the variance is mathematically represented as,
Substituting given values in the above formula,
= 500 / 20
= 25
So, the variance is 25
Therefore, the variance for the sample is 25
Learn more about the variance here:
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