There is an average of 3.5×10−2 kilograms of dissolved salt in each liter of seawater. the pacific ocean contains approximately 6.6×1020 liters of seawater. about how many kilograms of dissolved salt are in the pacific ocean? enter your answer, in scientific notation, in the boxes. (blank) x 10(blank) kg

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

well if he bought them at 5 cedis each sold them at 7 cedis each then he would make a profit of 2 cedis of each book. if in total he made 150 cedis profit that means he sold 75 books. he lost 12 books at the start so that means he originally bought a total of 82 books.

step-by-step explanation: