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2 years ago

A DVD player that normally cost $160 is on sale for 70% of its normal price.What is the sale price of the DVD player.

Mathematics

1 answer:

maw [93]2 years ago

7 0

160 $ = 100%
x $ = 70%

100 x = 11200
x = 112

160,00 - 112,00 = 48,00$

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Write the phrase as an expression. Six more than three times a number w. An expression for this phase is..?

deff fn [24]

Answer:

6+3x=w

Step-by-step explanation:

6 *more* more always means +

and then three *times* times always means *

so it would equal 6+3x=w

6 0

2 years ago

Monet measures the diameter of an Oreo and finds that each cookie is 1.75 inches across. Using Monet's measurement, calculate th

Anon25 [30]

Answer:

5.495 inches.

Step-by-step explanation:

We have been given that Monet measures the diameter of an Oreo and finds that each cookie is 1.75 inches across. We are asked to find the circumference of an Oreo.

We know that circumference of circle is equal to $2\pi r$ , where r represents radius of circle.

We also know that diameter is 2 times radius.

$D=2r$

Upon substituting $2r=\text{ 1.75 in}$ , we will get:

$\text{The circumference of an Oreo}=\text{ 1.75 in}\times \pi$

Using 3.14 as an estimation for π, we will get:

$\text{The circumference of an Oreo}=\text{ 1.75 in}\times 3.14$

$\text{The circumference of an Oreo}=5.495\text{ in}$

Therefore, the circumference of an Oreo would be 5.495 inches.

3 0

2 years ago

Y=x+2 4x+3y= -36 system of equation

Free_Kalibri [48]

Answer:

(-6, -4)

Step-by-step explanation:

Use substitution.

Since y is already isolated, substitute it into the y of: 4x+3y=-36.

You should get: 4x+3(x+2)=-36

Simplify this and you'll get:

4x+3x+6=-36

Add both of the variables:

7x+6=-36

Add -6 to both sides, (because there is a -36 on one side, and a 6 on the other, you have to add a negative to eliminate the 6 whilst adding to the -36)

7x=-42

Divide both sides by 7:

x=-6

Now substitute this into y=x+2

y=-6+2

y=-4

4 0

3 years ago

Read 2 more answers

The measure of the perimeter of a triangle is 37s+ 42. It is known that two of the sides of the triangle hare measures of 14s+ 1

ale4655 [162]

Answer:

13s+6

Step-by-step explanation:

the length of the third side =

37s+42- (14s+16+10s+20) =

37s+42 - 24s -36 =

13s+6

7 0

2 years ago

When downloading a large file from the internet Alice interrupted the download by closing her computer. Later that evening she r

Temka [501]

Using the slope concept, it is found that the rate of download of the file is of 1920 MB/s.

<h3>What is the slope?</h3>

The slope of a linear function is given by the <u>change in the output divided by the change in the input</u>.

In this problem:

3 minutes since resuming the download 6720 total MegaBytes (MB).

5 minutes since resuming the download 10560 total MegaBytes (MB) of the file had been downloaded..

Hence, in 2 minutes, there was a change of 10560 - 6720 = 3840 MB, which means that the slope is:

$m = \frac{3840}{2} = 1920$

The rate of download of the file is of 1920 MB/s.

You can learn more about the slope concept at brainly.com/question/25934562

8 0

2 years ago