There is a mistake 9,12,13 is not a right triangle. but 9,12,15 is. IF you use this triangle instead, then the area of the 13,14,15 triangle is the sum of the area of the other two triangles.
A=adult pay
c=child pay
3a+4c=83
2a+3c=59
subtract
a+c=24
2a+2c=48
2a+3c-2a-2c=59-48
c=11
a=24-11=13
price of adult ticket=13$
price of child's ticket=$11
Answer:
60
Step-by-step explanation:
180=(x+30)+(4x)
Ok, combine like terms. That'll give you
180=5x+30.
Now solve for x. X is going to equal 30.
Then substitute 30 for x in the angles. One angle will be 60 and the other will be 120.
60 is smaller than 120 so that's your answer.
