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r-ruslan [8.4K]
3 years ago
12

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the di

scount percent and gain percent.​
Mathematics
1 answer:
Wewaii [24]3 years ago
5 0

Answer:

Profit  14.28%      Discount 20%

Step-by-step explanation:

Selling price     100

Marked price   125 (25%more)

Cost price     87.5(125=125*30%)  

Profit 12.5/87.5*100= 14.28%

Discount   25/125*100 = 20%    

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A ball is thrown straight up from the top of a building 124 ft tall with an initial velocity of 64 ft per second. The height s(t
algol13

Answer:

246 ft is the maximum height

Step-by-step explanation:

The height h given above is a quadratic function. The graph of h as a function of time t gives a parabolic shape and the maximum height h occur at the vertex of the parabola. For a quadratic function of the form h = a t² + bt + c, the vertex is located at t = - b / 2a. Hence for h given above the vertex in the question s(t) = 124 + 64t − 16t², is at t

t = -64/2(-16) = 64/32 = 2 seconds

Thus, 2 seconds after the object was thrown, it reaches its highest point (maximum value of h) which is given by

h = -16(2)² + 64 (2) + 124 = 246eet

6 0
3 years ago
The tree in Charlie’s backyard is 9 meters high. how high is it in centimeters
butalik [34]
If you use metric conversion (shown below), you will find that 9 meters = 90 cm. Tell me if you need further explanation.
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3 years ago
50 points!!!!! Please!!!!! Sandra and Jenny spend a certain amount of money from their money box each month to buy plants. The t
nekit [7.7K]

Answer:

A) Function 2 shows a greater rate of change because Jenny spends $6 each month and Sandra spends $5 each month.

Step-by-step explanation:

The y-intercept for Sandra is 55 and the slope is -5. While Jenny's y-intercept is 50 and slope is -6.

6 is a greater number therefore causing Jenny's slope to decrease faster causing her to have less money at a much faster rate. (rate of change=slope) Jeny's slope is decreasing at a faster rate of change because she is spending more money everyday than Sandra is.

Hope this helps! Have a great day! :)

4 0
3 years ago
When the radius of a sphere is doubled, what is the resulting change in volume? A) The original volume is doubled. B) The origin
kobusy [5.1K]

Answer:

C

Step-by-step explanation:

The volume (V) of a sphere is calculated using the formula

V = \frac{4}{3}πr³

If the radius is doubled, that is r = 2r , then

V = \frac{4}{3}π (2r )³

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5 0
3 years ago
Over what interval is the growth rate of the function decreasing?
aleksklad [387]
I think the rate is decreasing from:
(-infinity, ln9/3)
6 0
3 years ago
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