x = 8
Explanation:
AE = 3x - 4
EC = x + 12
SInce diagonals AC and DB intersect at E
it means the lines which meet at the intersection E are equal. A and C meet at E which gives AE and EC
AE = EC
3x - 4 = x + 12
collect like terms:
3x - x = 12 + 4
2x = 16
divide both sides by 2:
2x/2 = 16/2
x = 8
The number X is placed somewhere between 9 and 10. That's because 9 squared is 81 and 10 squared is 100.
Answer:
1800
Step-by-step explanation:
jdjdvdbdjhdbsndbdbdbd
Answer:
17,37
Step-by-step explanation:
one number = x
The positive number = 2x + 3
x * (2x+3) = 629
x*2x + x *3 = 629
2x² + 3x - 629 = 0
2x² - 34x + 37x - 17*37 =0
2x*(x -17) + 37(x - 17) = 0
(x - 17)(2x + 37) = 0
x - 17 = 0 ; Ignore 2x + 37 as s is a positive number
x = 17
Positive number = 2*17 +3 = 34+3 = 37
Answer: 85
Add up all the numbers: 97+70+89+99+100+78+79+89+77+72=850
Divide 850 by the amount of numbers:
850/10=85
I hope this helps and good luck! :)
