Hi there!
Since we know that the sum of all 3 measures of a triangle is always equal to 180 degrees, and that supplementary angles are equal to 180 degrees when added, we can solve by first finding the supplement to ?.
75 + 40 + ? = 180
180 - 75 - 40 = ?
105 - 40 = ?
? = 75
Now, we find the actual? .
Since 75 + ? = 180,
180 - 75 = 115
? = 115
So, your answer is 115°.
Hope this helps!
Call the amount of apples Fatima bought as x.
She gave half of the apple to Salma -> x : 2
Then she gave Maha 5 apples -> x : 2 - 5
She is left with 3 apples, so we have the equation x : 2 - 5 = 3
Solve for x :
x = (3+5) x 2 = 16.
Answer:
-2(2+5r)
Step-by-step explanation:
-(7+10r)+3
then you remove the parentheses
-7-10r+3
calculate the sum
-4-10r
factor the expression
-2(2+5r)
They don't have the same x-coordinates or the same y-coordinates so it is neither.
