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Verizon [17]
3 years ago
15

Today only a sofa is being sold at a 29% discount. The sale price is $639. What was the price yesterday?

Mathematics
1 answer:
kifflom [539]3 years ago
7 0
What we need to do is find out what 29% of 639 is and add it to 639 to find the total.  The easiest way to find a percentage of a number, if you don't know how to calculate it, is by taking 10%.  So 10% of 639 is 63.9.  Now since there is 29%, we need to multiply 63.9 x 2, to get 127.8.  However, we only have 20% out of the 29%.  So we need to find the other 9%.  If 10% is 63.9, then 1% is 6.39.  So we need to multiply 6.39 x 9, and that equals 57.51.  Now, we need to add 127.80 and 57.51 together.  That will give us 185.31.  Add that to the 639, and you have your answer.  Hope this helped!
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slamgirl [31]
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Because you should already have the slope from the first part (because slope is the same thing as rate of change), you should know that the slope is 60. The y-intercept should be your y value when x=0, and if you set up the equation in terms of years since Elliot has started his business, the year 2000 should be equal to x=0, so the y intercept should be equal to 750.

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6 0
3 years ago
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galben [10]

Answer:

The measures of two angles are 2x⁰ and (3x + 20)⁰. What is the measure of each angle if x = 14?

b 28 and 62

4 0
3 years ago
What is the answer to this question? I need help.
anygoal [31]
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7 0
3 years ago
Sara's savings account balance changed by -$34 one week and by -$67 the next week .Which amount represents the greater change?
fomenos
<u />The greater change is represented by the absolute magnitude

|-34| = 34
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4 0
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What is the value of x
RideAnS [48]

Answer:

x=5

Step-by-step explanation:

We can use the Triangle Angel Bisector Theorem


AB             2x-1

----------= --------------

AC               3x

9              2x-1

----------= --------------

15               3x


Using cross products

3x*9 = 15*(2x-1)

Distribute

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Subtract 30x from each side

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-3x = -15

Divide by -3

-3x/-3 =-15/-3

x =5

4 0
2 years ago
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