Answer:
$140.48
Step-by-step explanation:
Let x represent dialed units.
We have been given that a quarterly telephone bill consist of $79.15 rental plus 4.7 cents for each dialed unit.
4.7 cents = $0.047
Cost of dialing x units would be .
Total cost of dialing x units would be .
Let us find cost of dialing 915 units by substituting in above expression.
Now, we will find 15% of sales tax as:
Total bill:
Therefore, Mrs. Jonas's bill would be $140.48.
Answer: 5 bananas to 25 fruits
Step-by-step explanation: its kinda hard for me to explain 0.0
The inner and outer Radii of a cylindrical pipe are 5 cm and 4 cm respectively. find the area of cross section of the pipe.
Answer:
28.3 cm²
Step-by-step explanation:
You find the area of the whole section which is 5²π = 25π.
Then you find the area of the empty part which is 4²π = 16π.
Then you subtract to get 9π which is 28.27433388......
= 28.3 cm²
Answer:
The diameter of circle is 24 cm.
Step-by-step explanation:
We are given the following in the question:
Circumference of circle = 75.36 cm
We have to find the diameter of the circle.
Circumference of circle =
where r is the radius of the circle.
Putting values, we get,
Diameter of circle =
Thus, the diameter of circle is 24 cm.
Probability that the first coin is a dime: 1/2
Probability that the second coin is a nickel: 1/3