You are given a prescription for a hundred ml of a 15% hydrochloric acid solution the pharmacy carries 90% hydrochloric solution how many mls of the concentration of solutions are needed to fill this prescription

If q represents the quantity of solution needed, you require

... 0.90q = 0.15×(100 mL)

... q = (0.15/0.90)×(100 mL)

... q ≈ 16.7 mL

You actually need 16 2/3 mL of concentrated solution.

b

step-by-step explanation:

hence, the required result is

step-by-step explanation:

suppose we have two matrices a and b

we will assume the two matrices

we have to compute b-a which means subtracting corresponding elements of a from b.

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