Answer:
Adult=58
Step-by-step explanation:
c=child, a=adult
6.4c+9.7a=1145 equation 1
c+a=149 equation 2
a=149-c modified equation 2 to isolate a
6.4c+9.7(149-c)=1145 substitute value of a from equation 1 into equation 2
6.4c+1445.3-9.7c=1145
-3.3c=-300.3
c=91
solve for a
c+a=149
91+a=149
a=58
Check answer:
6.4c+9.7a=1145
6.4(91)+9.7(58)=1145
582.40+562.60=1145
1145=1145
The answer is simplified to 15
Six is the domain, while 1 is the codomain.
Answer:
False, True, True, False
Step-by-step explanation:
I'm pretty sure all your answers are right except the second one. I'm no genus or anything like that tho so I'm not sure. Plus I'm not good at graphs. Well depends how it is.
