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zysi [14]
3 years ago
7

Some jeans at Macy's normally cost $80. During a sale Alexia buys them for $14 off. What percent will she save?

Mathematics
1 answer:
viva [34]3 years ago
8 0

Answer:

down below.

80 - 14 = 66

66 × 100 ÷ 80 = 82.5%

Alexia saves 82.5%

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Julie will build a rectangular pen for her dog against a barn. A wall from the barn will form one side of the pen, She has 32 m
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8 meters by 16 meters
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Nadusha1986 [10]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
Please help me on this one
devlian [24]

Answer:

option a

step-by-step explanation:

To rationalize the expresion we need to multiply and divide the expression by the conjugate of the denominator as follows

sqrt(9) / (sqrt(3) + sqrt(x)) = sqrt(9) ((sqrt(3) - sqrt(x)) / ((sqrt(3) + sqrt(x))(sqrt(3) - sqrt(x)))

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So the result es option a:

(3sqrt(3) - 3sqrt(x)) / (3 - x)

4 0
3 years ago
exam is worth 145 points 50 questions. some are 2 points and some are 5. how many question are 5 and how many are 2
Firdavs [7]
Let x = number of questions worth 2 and y be  those worth 5.

so we have the system:-

x + y = 50
2x + 5y = 145

multiply first equation by -2:-

-2x - 2y = -100

Add this to the second equation:-

3y = 145-100

3y = 45
y = 15 

and x = 50-15 = 35


Answer:-  there are 35 questions worth 2 points and 15 worth 5 points.


6 0
4 years ago
The revenue for a company producing widgets is given by y = -20x2 - 50x + 200, where x is the price in dollars for each widget.
lisov135 [29]

Answer:

The  price is   x =  $2.779

Step-by-step explanation:

From the question we are told that

  The  revenue is  y = - 20x^2  - 50 x + 200

   The cost of production is  y = 30 x - 10

Generally at break even point the cost of production is equal to the  revenue

So

      -20x^2 -50x + 200 =  30x-10

=>   20x^2 +20 -210 = 0

Using the quadratic formula to solve this equation we have that

       x =  $2.779

     

6 0
3 years ago
Read 2 more answers
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