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scoray [572]
4 years ago
7

Dustin bought a DVD player that was marked down from $150 to $100. A video game console was $250 and marked down by $75. Which d

evice has the GREATEST PERSENT DECREASE.
Mathematics
2 answers:
Vika [28.1K]4 years ago
3 0

Answer:

It would be the game console

Step-by-step explanation:

The DVD player went down $50 the console went down about $100 and that is a better idea

Valentin [98]4 years ago
3 0

DVD player have greatest percentage decrease that is 33.33% compared to Video game console having percentage decrease of 30%.

<u>Solution:</u>

Marked price of DVD player = $150

After discount, price of DVD player = $100

Marked price of Video game console =$250

After it is marked down by $75, discount price of videogame = $250 - $75 = $175

Need to determine which device has greater percentage decrease.

\text { Percentage decrease of D.V.D player }=\frac{\text {Marked Price-discount price}}{\text { marked price }} \times 100

\begin{array}{l}{=\frac{150-100}{150} \times 100} \\\\ {=\frac{50}{150} \times 100=33.33 \%}\end{array}

\text { Percentage decrease of Video game console }=\frac{\text {Marked Price-discount price}}{\text { marked price }} \times 100

\begin{array}{l}{=\frac{250-175}{250} \times 100} \\\\ {=\frac{75}{250} \times 100=30 \%}\end{array}

Hence DVD player have greatest percentage decrease that is 33.33% compared to Video game console having percentage decrease of 30%.

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3 0
3 years ago
IF 24% of the sixth grade class is in Mrs Whites class and Mrs White has 30 students how many sixth graders are there in all?
Alexeev081 [22]

Given

0.24 × (number of 6th grade students) = 30

Find

(number of 6th grade students

Solution

Divide by 0.24.

... (number of 6th grade students) = 30/0.24 = 125

4 0
3 years ago
Read 2 more answers
The polar coordinates of a point are 3π 4 and 7.00 m. What are its Cartesian coordinates (in m)? (x, y) = 6.06,−3.5 m
Keith_Richards [23]

Answer:

a) \left(x,y\right)=\left(4.95,-4.95\right)

b) r\angle\theta = 7\angle0.5236\,\text{radians}

Step-by-step explanation:

Polar coordinates are represented as: r\angle\theta, where 'r' is the length (or magnitude) of the line, and '\theta' is the angle measured from the positive x-axis.

in our case:

7\angle\dfrac{3\pi}{4}

to covert the polar to cartesian:

x = r\cos{\theta}

y = r\sin{\theta}

we can plug in our values:

x = 7\cos{\dfrac{3\pi}{4}} = -7\dfrac{\sqrt{2}}{2}

y = 7\sin{\dfrac{3\pi}{4}} = 7\dfrac{\sqrt{2}}{2}

the Cartesian coordinates are:

\left(x,y\right)=\left(-7\dfrac{\sqrt{2}}{2},7\dfrac{\sqrt{2}}{2}\right)

\left(x,y\right)=\left(4.95,-4.95\right)

(b) to convert (x,y) = (6.06,-3.5)

we'll use the pythagoras theorem to find 'r'

r^2 = x^2+y^2

r^2 = (6.06)^2+(-3.5)^2

r = \sqrt{48.97} \approx 7

the angle can be found by:

\tan{\theta} = \dfrac{y}{x}

\tan{\theta} = \dfrac{3.5}{6.06}

\theta = \arctan{left(\dfrac{3.5}{6.06}\right)}

\theta = 0.5236 \text{radians}

to convert radians to degrees:

\theta = 0.5236 \times \dfrac{180}{\pi} \approx 30^\circ

writing in polar coordinates:

r\angle\theta = 7\angle30^\circ\,\,\text{OR}\,\,7\angle0.5236\,\text{radians}

5 0
3 years ago
-7 5/11 as a decimal and rounded to the nearest hundredth
Alika [10]

Answer: -7.45

Step-by-step explanation -7 5/11 is -82/11 as an improper fraction, which is -7.45 in decimal form.

5 0
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What the first four common multiples on 3 like for 2,4,6,8
maksim [4K]

Answer:

3,6,9,12

Step-by-step explanation:

Add 3 to every number after 3.

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