Hello from MrBillDoesMath!
Answer:
x = 11
Discussion:
Line KHF has 180 degrees so
(11x + 4) + angle GHF = 180 =>
angle GHF = 180 - (11x + 4) =>
angle GHF = 176 - 11x (*)
Triangle GHF has 180 degrees =>
60 + (6x-1) + angle GHF = 180
Substituting the value of angle GHF from (*) above gives
60 + (6x -1) + (176 -11x) = 180 =>
(60 + 176 -1) + (6x - 11x) = 180 =>
(235) + ( -5x ) = 180 => subtract 235 from both sides
-5x = 180 - 235 =>
-5x = -55 => divide both sides by 5
x = 55/5 = 11
Thank you,
MrB
50%. students (in percent) who passed the second exam also passed the first exam.
Let's imagine that there are 100 kids in the teacher's class. We know that 40 of them passed BOTH tests, and 80 passed the second test.
Because if they weren't, they wouldn't have passed the first test and consequently wouldn't have passed both, we can be sure that the group of students who passed BOTH tests is only made up of the 80 who passed the second test.
Thus, both tests were passed by 40 of the 80 pupils who passed the second one:
40/80 = 1/2 = 50%.
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Answer:
4.1 in
Step-by-step explanation:
now we multiply pi and 10.71- i left it in the hundreths
place when i get my final answer ill round it to the tenths)
, we need the 
alone so we now dive with 33. 62 on both sides, elimenating the 33.62. Now 751/ 33.62= 16.98.
now we square root it
= 4.12 which rounded is 4.1
Answer:
The answer would be 3.606, but rounded is 3.61, or 3.6
Step-by-step explanation: A^2+B^2 = c^2, so 3x3=9
2x2=4,
9+4=13
Then square 13, which would give you 3.606
