An independent event is an event in which the outcome isn't affected by another event. A dependent event is affected by the outcome of a second event.
A=adult
c=children
total lumber=30
total number=adults+children
a+c=30
total cost=50
total cost=acost+ccost
acost=a times cost per adult=a times 3=3a
ccost=c times cost per child=c tiems 1=1c=c
total cost=3a+c
50=3a+c
equiaotn are
a+c=30
3a+c=50
multiplyu first by -1 and add
3a-a+c-c=50-30
2a=20
a=10
sub
10+c=30
c=20
answer is A
Answer:
Step-by-step explanation:
fe+3f+2f+2=2f-2+5
fe+5f+2=2f+3
fe+2=-3f+3
e=2/-3+3f
Answer:
3) answer is 120 4) 105
Step-by-step explanation
3) 180 - (70+50) = 60
180-60 = 120 <-- thats the answer
4) 180 - ( 80+25) = 75
180 - 75 = 105 < thats the answer
