Answer:

Step-by-step explanation:
Swap the sides of the inequality and flip the inequality sign:

Divide both side of the inequality by -6 and flip the inequality sign:

she should add 7 liters of 10% acid solution
Explanation
Step 1
set the equation:
a) let X represents the amount os solution that is 4% acid
let Y represents the amount os solution that is 10% acid
so
I)

if he has 14 liters of 4% acid solution


Step 2
solve the equation :

therefore,
she should add 7 liters of 10% acid solution
I hope this helps you
Answer:
a
Step-by-step explanation:
Answer:
F
Step-by-step explanation:
14.5°C as the least account is only 0.5 so the
Accurate value= value +- 0.5