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Burka [1]
3 years ago
13

A dealer sold a stereo system for $754 after he marked it up 45%. What did the dealer pay for the stereo system?

Mathematics
1 answer:
svetlana [45]3 years ago
8 0
754/145 = 5.2
5.2 x 100 = 520
Final answer = 520
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Graph f(x)=2x+1 and g(x)=−x+7 on the same coordinate plane.
kogti [31]
Answer: 
x = 2

2x + 1 = -x +7           Add and subtract 
3x = 6                                divide
x = 2
3 0
3 years ago
What is a box plot in maths?
Zolol [24]

Answer:

A box and whisker plot—also called a box plot—displays the five-number summary of a set of data. The five-number summary is the minimum, first quartile, median, third quartile, and maximum. In a box plot, we draw a box from the first quartile to the third quartile. A vertical line goes through the box at the median

Step-by-step explanation:

3 0
3 years ago
Marti is filling a 10– inch diameter ball with sand to make a medicine ball that can be used for exercising. To determine if the
Mice21 [21]

Answer:

Option A. 30\ pounds

Step-by-step explanation:

step 1

Find the volume of the sphere ( medicine ball)

The volume is equal to

V=\frac{4}{3}\pi r^{3}

we have

r=10/2=5\ in ----> the radius is half the diameter

Convert inches to feet

Remember that

1 ft=12 in

r=5\ in=5/12\ ft

assume

\pi=3.14

substitute

V=\frac{4}{3}(3.14)(5/12)^{3}

V=0.3029\ ft^{3}

step 2

Find the weight of the ball

Multiply the volume in cubic foot by 100

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Round to the nearest pound

30.29=30\ pounds

6 0
3 years ago
What is the equation to the expression -2-3(-4)?​
RoseWind [281]

Answer:

c) -1

Step-by-step explanation:

-2-3-(-4)

=-5+4

=-1

8 0
3 years ago
The contrapositive of p q is:
Kay [80]
Some symbols are missing. I'm assuming you meant to put in a horseshoe symbol like so p \supset q

If so, then the contrapositive of that would be \sim q \supset \ \sim p which is the final answer. 

The tilde sign \sim means "not" so writing \sim q means "not q" which is the complete opposite of q. 
6 0
3 years ago
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