Answer:
36 years old (jim)
Step-by-step explanation:
looks like a good ol' word problem!
first, if you don't know what to do, always assign variables
Jim's age: x+9
June's age: x
Alex's age: x-8
we know the sum of their ages which is 82
so, x+9+x+x-8=82
simplify
3x+1=82
3x=81
x=27, but we're not done yet
Now we know x
jim: 36
june: 27
Alex: 21
so the oldest is jim at 36
Answer:
c
Step-by-step explanation:
I've don't this before in class so the answer is clear for me
Addition property is the answer
Answer:
15 litres
Step-by-step explanation:
129.6 m² needs 8L
1m² needs 8/129.6L
243m² needs (8/129.6)×243 = 15L
