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sdas [7]
3 years ago
15

Show two different approaches to calculating the sale cost of a jacket, regularly $200, which has a discount of 30%. Include the

final answer for each method shown. Neglect sales tax for this problem.
Mathematics
1 answer:
Rainbow [258]3 years ago
4 0
I think the answer is 50 dollars more the amount
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The difference between the simple and compound interest for a certain sum of money of 3 years at 5% per annum is Rs.61.0. Find t
miss Akunina [59]

5% interest compounded annually for 3 years multiplies the initial balance by

... 1.05^3 = 1.157625

5% simple interest for 3 years multiplies the initial balance by 1 + 3*0.05 = 1.15.

The difference of these multipliers is

... 1.157625 - 1.15 = 0.007625

If the difference in account balance is Rs 61.00, then the invested principal amount P is

... P*0.007625 = 61.00

,.. P = 61.00/0.007625 = 8000.00

The sum of money is Rs 8000.

7 0
3 years ago
An airplane's altitude changes -378 feet over 7 minutes. What was the mean change of altitude in feet per minute?
Sveta_85 [38]
<h2>Answer:</h2>

<u>The mean altitude will be</u><u> -54 per minute</u>

<h2>Step-by-step explanation:</h2>

We are given with altitude change as -378 feet over 7 minutes

Now

We need feet per minute

So -378 / 7 will give us the altitude change per minute

-378 / 7 = -54

Therefore the mean change of altitude in feet per minute is -54 per minute

8 0
3 years ago
Find perimeter of regular pentagon is 100 inches. Find the length of each side.
Sergio [31]
A regular pentagon is a polygon with five sides of equal length.

The perimeter of a regular polygon is the number of sides (n) multiplied by the length of one side (s).

P=ns
100=5s
s=20

The length of each side is 20 inches

6 0
3 years ago
Read 2 more answers
Determine the measure of ∠A. ANSWWER: 1) 192° 2) 88° 3) 84° 4) 168°
hichkok12 [17]

Answer:

3) 84°

Step-by-step explanation:

The angle formed by a chord and a tangent measures half of the intercepted arc.

m<A = (1/2)m(arc) = (1/2) * (168 deg) = 84 deg

7 0
3 years ago
To pass a course with a C ​grade, a student must have an average of 70 or greater. A​ student's grades on three tests are 69​, 7
mario62 [17]

Answer:

72

Step-by-step explanation:

8 0
3 years ago
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