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kykrilka [37]
2 years ago
5

Eli's Electronics has 60-inch television on sale this week for $798. The television is regularly priced for $1050. By what perce

nt did the price of the television decrease?
Mathematics
1 answer:
umka2103 [35]2 years ago
3 0

Answer: that would be 76% hope that helps



Step-by-step explanation:


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One canned juice drink is 15​% orange​ juice; another is 10​% orange juice. How many liters of each should be mixed together in
Vaselesa [24]

Answer:

3 liters of 15% and 2 liters of 10%

Step-by-step explanation:

You can set up a table that says the number of liters multiplied by the percent juice equals total percent of juice in L liters:

              L      *      % juice    =         %L

That is the main set up for the table.  We will put in values for the percent juice right away, because they were given to us.  Remember that percentages need to be expressed as decimals in order to use them in equations.

              L     *       % juice       =        %L

15%                          .15

10%                          .10

___________________________________

13%                           .13

Easy enough so far.  We know that the 15% juice canned juice contains 15% juice.  No secrets there at all.  We also made a row for the mixture that needs to be 13% juice.  Next we know that the total amount of the mixture has to be 5 liters.  If we mix one juice with another and the total has to be 5 liters, then we have an unknown amount of one juice, and 5 - that unknown amount of the other juice.  Filling in we have:

             L      *      % juice       =       %L

15%        x                   .15

10%      5 - x                .10

______________________________

13%         5                   .13

Our equation tells us that we have to multiply the L times the % to fill in that last column:

             L      *      % juice      =       %L

15%        x     *          .15           =      .15x

10%      5-x    *          .10          =     .10(5 - x)

__________________________________

13%         5      *        .13           =     .65

We are told from the problem we are adding the 2 juices to get the mixture, so we will add the rows in the last column and set it equal to .65:

.15x + .10(5 - x) = .65

Let's multiply everything by 100 to get rid of all those decimals:

15x + 10(5 - x) = 65

Distributing and combining like terms:

15x + 50 - 10x = 65 and

5x = 15

x = 3

That means that we need 3 liters of the canned juice that is 15% juice.

5 - 3 = 2...and 2 liters of the canned juice that is 10% juice to get the correct number of liters of 13% juice.

6 0
3 years ago
Simplify 76 ⋅ 75. (4 points) 4911 4935 711 735
rewona [7]

Answer: Simplify 76 ⋅ 75. (4 points)

Step-by-step explanation:

4911

4935

711

735

7 0
3 years ago
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The number 0.8 can be written as 8/10, so it is an irrational number? true or false
Marat540 [252]
It is not an irrational number
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3 years ago
Which list shows the runners in order by their completion times from fastest to slowest
gogolik [260]

Answer:

answer is D

Step-by-step explanation:

12+1/2=12.5          12+2/5=12.4

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2 years ago
Which statements are true?
Sav [38]

Answer:

its 2 and 4

Step-by-step explanation:

7 0
2 years ago
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