All categories

2 years ago

A stereo costs $320. in a sale it is reduced by 25% what is the sale price

1 answer:

Rudiy272 years ago

6 0

First, set up a proportion to find the reduction in price. 25/100=x/320. Cross multiply to get 8000=100x. Divide by 100 on both sides to get x=80. That's the reduction in price. Subtract from the total to find the new price 320-80=$240

You might be interested in

When is a zero not significant?

fomenos

Answer: A. When it comes after the decimal point, as in 4.000

Step-by-step explanation: If there are no other numbers after the zeros, there is no reason for them to be place holders. Zeros in decimals act as place holders such as in 4.09 or 4.0009. This actually does change the value of the decimal but 4.000 is just the same as a regular old 4. Hope this helps!

7 0

2 years ago

Read 2 more answers

3/6x4/9 plz help meeeeee

Aleonysh [2.5K]

Answer:

12/54

Step-by-step explanation:

4x3=12

6x9=54

3 0

2 years ago

Read 2 more answers

This table shows the number of points two teams scored in five games

mezya [45]

Answer:

2.16

Step-by-step explanation:

The question is on mean absolute deviation

The general formula ,

Mean deviation = sum║x-μ║/N where x is the each individual value, μ is the mean and N is number of values

Team 1

Finding the mean ;

$mean= \frac{51+47+35+48+64}{5} =49$

Points Absolute Deviation from mean

51 2

47 2

35 14

48 1

64 15

Sum 34

Absolute mean deviation = 34/5= 6.8

Team 2

Finding the mean

$mean=\frac{27+55+53+38+41}{5} = 42.8$

Points Absolute deviation from the mean

27 15.8

55 12.2

53 10.2

38 4.8

41 1.8

Sum 44.8

Absolute deviation from the mean = 44.8/5 =8.96

Solution

Difference in mean absolute deviation of the two teams = 8.96-6.8 = 2.16

5 0

3 years ago

The price of a cup of coffee was $2.75 yesterday. Today, the price fell to $2.40. Find the percentage decrease. Round your answe

Fed [463]

Answer: (2.75-2.40)/(2.75) * 100 [Before rounding to the nearest tenth]

Step-by-step explanation:

Formula for percentage decrease = (old-new)/(old) * 100

so substituting in, you get (2.75-2.40)/(2.75) * 100

From here, you can just plug this into a calculator (don't have on me rn)

8 0

1 year ago

15/3+30/3= how I can solve it ?

Kazeer [188]

15/3=5
30/3=10

5+10=15

3 0

2 years ago