Suppose an engineer has been instructed to create three new sky rides in the park. He has been given the length and the time eac
1 answer:
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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