Answer:
Step-by-step explanation:
They both are acute angles
So what you do first is find the area of this lawn and you do 10 by 12 and multiply those and you get 120 feet so now what you do is divived 120 by 3 and you get 40 so that means she mowed 40 ft in each hour so that would be the unit rate.
X= adult tickets
Y= Children tickets
You need two equations one is number of people
Second formula is the money
X+y= 429
1x+ .75Y= 372.50
You can use the substitution or elimination method
I will use substitution make X = 429-y using the 1st equation then put it in the 2nd
429-1y+.75y= 372.50
429 -.25y= 372.50
-429. -429
-.25y=. -56.5
Divide both side by -.25
y= 226
So 429-226= 203 for X
203 adult tickets and 226 children tickets