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3 years ago

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

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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:

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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