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murrachl000
06.12.2020 •
Mathematics
Please help me ive been on these question for about an hour and some mintues i currently have a 45 in math this will help my grade up please help.
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Ответ:
The value of x = 5 and y = 2.
Step-by-step explanation:
Here the DECK given is a parallelogram.
KT = 2x + y, DT = x + 2y, TE = 12 and TC = 9 are also
In a parallelogram, now:
DIAGONALS IN A BISECT OF A PARALLELOGRAM EACH OTHER
Even, in a DECK parallelogram,
The DC and KE sides have two diagonals.
T is the AC and KE mid-point.
· KT = TE and DT = TC ( as diagonals are bisected)
Approximately 2 x + y = 12 and x + 2y = 9
Here then the set of two equations is:
Two x + y = 12 x + 2 y y = 9
Multiply (2) by -2 and add (1), and we get: 2 x + y - 2 x - 4 y = 12 - 18 = 12 - 18 y
Or, - 3 y = - 6
Or or, y = 2
If y = 2, x + 2 (2) = 9, or x = 5, x = 5,
Consequently, the values of x = 5, y = 2 = 2