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Masteriza [31]
3 years ago
14

A tennis racket at sport city costs 180 and is a discounted 15% the same model racket costs 200 at tennis world and is on sale f

or 20% off. which store is offering the better deal
Mathematics
1 answer:
irga5000 [103]3 years ago
5 0
1st store = 180 / 100 = 1.8, 1.8 x 15 = 27. The discount is 27, so it costs 153.
2nd store = 200 / 100 = 2, 2 x 20 = 40. The discount is 40, so it costs 160.

The 1st store is offering a better deal.
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A new pencil is 19 centimeters long. Levi uses it for a month. The pencil now measures 8 centimeters.
pogonyaev

Answer:

11 cm

Step-by-step explanation:

Given:

Length of new pencil = 19 cm

Length of pencil after using a month = 8 cm

Question asked:

The pencil is centimeters shorter now than when it was new = ?

Solution:

Length of new pencil = 19 cm

Length of pencil after using a month =  8 cm

The pencil is centimeters shorter now than when it was new = 19 cm -  8 cm

                                                                                                     = 11 cm

Length of pencil has been used during a month = 11 cm

8 0
3 years ago
A disco ball is shaped like a sphere with a diameter of 16 inches. To the nearest square inch, what is the surface of the disco
Mademuasel [1]
If the diameter is 16 inches, then its radius is half that, r = 8.

\bf \textit{surface area of a sphere}\\\\
A=4\pi r^2\quad 
\begin{cases}
r=radius\\
-----\\
r=8
\end{cases}\implies A=4\pi 8^2
5 0
3 years ago
What ones are functions and which are not pls help
Fantom [35]
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Not functions: the top graph on the left with the vertical line, the graph with the circle, and the bottom right graph

Any graph that doesn’t pass the vertical line test is not a function. You can do this by starting at the top of the graph and drawing a line straight down through what you are testing. If you pass through the line or circle more than once it is not a function.
If you look at the number values if the x value repeats more than once it is not a function.
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I will mark brainiest is my answer is correct?
Alex Ar [27]
Your answer is correct
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Answer:

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Step-by-step explanation:

7 0
3 years ago
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