A chemist wants to create 20 liters of 45% sulphuric acid solution. He only has 36% sulphuric acid and 54% sulphuric acid per volume. How many liters of each solution must the chemist mix
to make the 45% solution?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.