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Lisa [10]
2 years ago
13

Find the value of x for which ABCD must be a parallelogram a. 7 b. 2 c. 1 d. 4

Mathematics
2 answers:
katrin [286]2 years ago
6 0

Step-by-step explanation:

x+3=2x-1

x-2x=-1-3

-x=-4

x=4

likoan [24]2 years ago
5 0
The answer is 4 because a parallelogram have 4 slanted sides in different sizes
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Answer:

There is no unique solution to this problem.

There are infinitely many solutions to this problem.

Step-by-step explanation:

Let B denotes broccoli crop

Let S denotes spinach crop

Last year, he grew 6 tons of broccoli per acre and 9 tons of spinach per acre, for a total of 93 tons of vegetables.

Mathematically,

6B + 9S = 93        eq. 1

This year, he grew 2 tons of broccoli per acre and 3 tons of spinach per acre, for a total of 31 tons of vegetables.

Mathematically,

2B + 3S = 31

2B = 31 -  3S

B = (31 -  3S)/2      eq. 2

Substitute eq. 2 into eq. 1

6B + 9S = 93

6[(31 -  3S)/2] + 9S = 93

3(31 -  3S) + 9S = 93

93 - 9S + 9S = 93

- 9S + 9S = 93 - 93

0 = 0

Therefore, there is no unique solution to this problem.

Which means that there are infinitely many solutions to this problem.

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