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mars1129 [50]
3 years ago
5

Help with all of the questions?

Mathematics
1 answer:
jasenka [17]3 years ago
4 0
1. x + 3y = 3 and x - 2y = 0
2. (2,1)
3. solution
4. true
5.  equation 1 :                        equation 2 :
     x + y = 3                                x - 2y = 0
     2 + 1 = 3                                2 - 2(1) = 0
     3 = 3 (correct)                        2 - 2 = 0
                                                   0 = 0 (correct)

both equations are true...so (2,1) is a solution set to this system of equations
      
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The area of a racquetball court is 800 square feet.The length of a standard court is twice as its width. What are the dimensions
zubka84 [21]

Given - area of a racquet ball court is 800 square feet.

length is the twice of the width

find out thedimensions of the racquet ball court.

To proof -

Formula

area of a rectangle = length×breadth

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let assume width be w

than  length become 2w

put in the formula

w×2w = 800 ft²

2w² = 800 ft²

w = \sqrt{400} ft

w = 20 ft

Than the length become 40 ft.

Hence proved


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