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Rina8888 [55]
3 years ago
14

Brittany is sell car magnets. She purchases them for $7.50 each and marks up the price by 30%. How much is Brittany planning to

charge?
Mathematics
2 answers:
nevsk [136]3 years ago
7 0
9.75 because 7.50 times 30% equals 9.75
agasfer [191]3 years ago
7 0

Considering that 30% of $7.50 is the same as 0.3/7.5, you would get $2.25 as the markup price. So by adding $7.50 with $2.25, Brittany would charge $9.75 per car magnet.

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The formula for calculating the amount of money (M) in an account
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36.27 dollars hope that helps
4 0
3 years ago
Jason jumped of a cliff into the ocean . His height as a function off time could be models as h(t)=16tsquared + 16t + 480 where
Karo-lina-s [1.5K]

I see that you are in high school, and I'm hoping that you've been introduced
to differential calculus, because I don't know how to answer this question without
using it.

We're told that Jason's height above the water is  <em>H(t) = -16t² + 16t + 480 .</em>
We can observe many things from this equation:
-- Up is the positive direction; down is the negative direction.
-- The acceleration of gravity is 32 ft/sec² .
-- Jason jumps upward from the cliff, at 16 ft/sec .
-- The cliff is 480-ft above the water.
(This tells us why the question is only concerned with his maximum height,
and then it ends ... 480-ft is one serious cliff, and what happens after the
peak of his arc is too gruesome to contemplate.)

In any case, his vertical velocity is the first derivative, with respect to time,
of his height above the water.

         V = -32 t + 16

At the peak of his arc, where gravity takes over, his velocity changes from
upward to downward, and it's momentarily zero.

                                           0 = -32t + 16

Add  32t  to each side:    32t = 16

Divide each side by  32:    <em>  t = 1/2 second</em>

His height at that instant is     H(0.5) = -16(0.5)² + 16(0.5) + 480 =

                                           <em>4-ft above the cliff,  484-ft above the water</em>,

and then he begins falling from that altitude.

The duration of his dive is      484 = 16 t²
                                                   t = √(484/16) = <em>5.5 seconds</em>

and he hits the water at      V = a t = (32) x (5.5) = 176 ft/sec = <em>exactly 120 mph </em>

Jason was good man ... a good student, and always kind to everyone he met.
He will certainly be missed.


5 0
3 years ago
Solve the system x + y = 12 and x - y = 2
SOVA2 [1]

Answer:

answer is d

hope it helps

plz mark as brainliest

Step-by-step explanation:

7,5

8,6

9,7

5 0
3 years ago
A video game store made a display of game console boxes show at the right. the length, width and high of each game console box i
yulyashka [42]
The volume would be 8ft because the formula for volume is length x width x height. Since they are all 2ft the formula would be 2ft x 2ft x 2ft. 
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A teacher gave his students the four graphs below. Which graph represents a geometric sequence?
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The answer is

graph A 

Hope this helps :)
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3 years ago
Read 2 more answers
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