By hypothesis, each minute of local calls costs $0.05
So x minutes of local calls will cost 0.05x : You just multiply the cost of 1 minute by the total amount of minutes.
Same thing for long distances calls: Each minute costs $0.12, so y minutes of long distance calls will cost 0.12x
So to get your total charge (local calls + long distance calls), you just need to add the charges for local calls with the charges for long distance calls, which means that you need to add the expressions we got previously:
P = 0.05x + 0.12y (with P the total charge)
Hope this Helps! :)
Answer:
Step-by-step explanation:
Considering the given triangle VRN, to determine VR, we would apply the sine rule. It is expressed as
a/SinA = b/SinB = c/SinC
Where a, b and c are the length of each side of the triangle and angle A, Angle B and angle C are the corresponding angles of the triangle. Likening it to the given triangle, the expression becomes
VR/SinN = VN/SinR = RN/SinV
Therefore
VR/Sin 75 = 22/Sin 39
Cross multiplying, it becomes
VRSin39 = 22Sin75
0.629VR = 22 × 0.966
0.629VR = 21.252
VR = 21.252/0.629
VR = 33.8 m
The internal rate of return of the project, to the nearest one decimal place, will be $ 44,200.
<h3>What is the percentage?</h3>
The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol 'percent' is used to symbolize it.
The net present value of a proposed project is $20,000 at a discount rate of 5% and $28,000 at 10%.
Then the internal rate of return of the project, to the nearest one decimal place will be
Internal rate = 20000 x 0.95 + 28000 x 0.90
Internal rate = 19000 + 25200
Internal rate = $ 44,200
More about the percentage link is given below.
brainly.com/question/8011401
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