A printing company uses the formula C=0.5x+10 to find the cost of printing x business cards which equation correctly solves the formula for x?
Answers
Where:
C = total cost of printing
x = number of business cards printed
0.5 = variable cost of printing, this cost depends on the number of business card
10 = fixed cost of printing, this cost stays the same regardless of the number of business card printed.
C = 0.5x + 10 ; derive the formula of x.
C - 10 = 0.5x
(C - 10)/0.5 = x
Answer: x = 2C - 20
Step-by-step explanation:
Subtract 10 from both sides of the equation: C - 10 = 0.5x
Divide both sides by 0.5 and simplify:
C - 10
0.5
= x → 2(C - 10) = x → 2C - 20 = x
Finally, interchange the sides of the equation: x = 2C - 20.
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Answers
Answers
It would be (115*131.3)/100 = 15099.5/100 = 150.99
Approx. 151 vehicles were sold in April
f(x)=15x−2
f(x)=2x−15
f(x)=2x+15
f(x)=15x+2
Answers
Hope this answers the question. Have a nice day.
Answer:
f(x)=2x+15
Step-by-step explanation:
b. How much feet can he descend in 6 minutes?
Answers
Time required = 2 1/2 minutes.
The rate of descent = (10 feet)/(2.5 mn) = 4 ft/min
In 6 minutes, the descent will be
(4 ft/min)*(6 min) = 24 ft
Answer:
(a) 4 feet/minute
(b) 24 feet
Answers
3 1
3 2
4 3
5 4
6 6
7 7
10 8
12 8
14 9
30 15
Which response best describes outliers in these data sets?
A, Reading has a suspected outlier in the 30-hour value.
B. Reading has a suspected outlier in the 30-hour value, and video has a possible outlier in the 15-hour value.
C. Neither data set has suspected outliers.
D. The range of data is too small to identify outliers.
Answers
Video: 1, 2, 3, 4, 6, 7, 8, 8, 9, 15
Reading Video
Minimum 3 1
1st quartile 4 3
Median 6.5 6.5
3rd quartile 12 8
Maximum 30 15
IQR 8 5
Outliers 30 no outliers
A, Reading has a suspected outlier in the 30-hour value.
Answer:
The correct option is: A,B
Step-by-step explanation:
" An outlier is a odd value which on removing from the data leads to the less mean as calculated mean on including that value ".
There are total 10 data points.
- The table for reading is given as:
3 3 4 5 6 7 10 12 14 30
The mean of this data is given by:
Also the mean after omitting the odd value i.e. 30 we get:
Hence, there is a change in its mean;
Hence the outlier for reading is 30.
- The table for Video is given by:
1 2 3 4 6 7 8 8 9 15
The possible maximum value here is 15 so we will check whether it is an outlier or not.
The mean of this data is given by:
Also the mean after omitting the odd value i.e. 15 we get:
Hence, there is a change in its mean hence 15 is an outlier.
Hence option A and B are true.