Answer:
-35x+28
Step-by-step explanation:
have a great day :'D
Answer:
-5
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
just out b i dont have time to explain
Answer:
0.62kg
Step-by-step explanation:
Let
x = 40/kg coffee
y = 11/kg coffee
two equations can be derived from the question
x + y = 12 equation 1
40x + 11y = 114 (9.5 x 12) equation 2
multiply equation 1 by 11
11x + 11y = 132 equation 3
subtract eqn 3 from eqn 2
29x = 18
divide both sides of the equation by 29
x = 0.62kg
