Together they counted 80 ducks on Monday and Tuesday
Answer:
$2.13
Step-by-step explanation:
If she paid $25.56 for a total number of 12 gallons, then you need to divide 25.56 by 12, and you will get 2.13. Meaning each gallon cost $2.13.
You can also check your answer by multiplying 2.13 by 12.
a + b + c = 30 ;
a = 6c ;
a = 2b ;
Then, c = a / 6 and b = a / 2 ;
a / 6 + a / 2 + a = 30 ;
a / 6 + 3a / 6 + 6a / 6 = 180 / 6 ;
10a = 180 ;
a = 18 ;
b = 9 ;
c = 3.
Good luck !
-7-5+3=1
-12+3=1
-9≠1. As a result, this is False. Hope it help!