Jerry is experimenting with chemicals in the laboratory. he mixes a solution that is 10% acid with a solution that is 30% acid. how much of the 10% acid solution will be needed to make 40 liters of a solution that is 25% acid?

it would open into a square depending on the type of envelope i’m not sure about the second part

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;