Answer:
Marina's age = 12
Her father's age = 48
triple Marina's age = 12x3
= 36
The age of Marina's sister
= 48-36
= 12
Therefore, Marina's sister's age is 12
7/2 as a mixed number would be 3 1/2
For this problem, we can say that corresponding angles are congruent, or the same, this also means that their angle measures have to be the same. Then, our equations for our angles will be vertical angles, which means that they must equal each other. So we would then write our equation as 3x+20=4x+10 or 4x+10=3x+20. Then, to combine like terms, we will subtract 3x from both sides, resulting in x+10=20. Then we will subtract 10 from both sides, resulting in x=10.
Answer:
subtract x coordinates
Step-by-step explanation:
Answer:
X = 13
X = 70
Step-by-step explanation:
1. Since it is a right angle set the equation up as X +2 + 75 = 90.
X =13
2. Set up x - 20 + 40 = 90 since right triangles are 90 degrees
x = 70
