Answer:
hi
Step-by-step explanation:
Answer:
a = 15
b = -10
Step-by-step explanation:
Here, we want to solve the system of linear equations
Firstly, let us multiply the first equation through by 10
2a - 5b = 100 ••••(i)
from the second equation;
a = 29 + b
Substitute this into i
2(29 + b) - 5b = 100
58 + 2b -5b = 100
-3b = 100-58
3b = 42
-b = 42/3
-b = 14
recall;
a - b = 29
a - (-14) = 29
a + 14 = 29
a = 29-14 = 15
If they started with 100 and 27 remained, then (100 - 27) = 73 were taken.
ratio of milk cartons taken to total milk cartons = 73/100 or 73:100 or 73 to 100
The answer is (1,4) plug it in to check if you want
