All the angles in a triangle equal 180 degrees.
So,
y+40+y+30= 180
2y+70= 180
2y= 110
Divide by 2.
y= 55
"A" is the answer.
I hope this helps!
~kaikers
The question asks us for something like this: something - 8 = something
In this case, the second choice, or B) 9 - 8 = 1 would be the correct answer. Hope this helps and have a great day!
What must be subtracted from each term of the ratio 3:7 so that the ratio becomes 2:5?
My attempt: Let two numbers be 3x and 7x. So, 3x−y7x−y=25⟹15x−5y=14x−2y⟹y=x3. But the answer is given as 13 only.
I wish somebody could provide some clarifications.
Answer:
14 square meters
Step-by-step explanation:
If you break the figure into two parts you get 3x2 and 2x4. Multiplying those will give you 6 and 8. Add 6 and 8 to get 14. Hope this helped! :D
(8, 5) I think... because that’s what it says on. Khan academy