6 √5
7 π
Both continue on forever and will never have an exact answer - therefore, they're irrational.
44.85 * 9.84 = 441.2256
88.6 * 5.01 = 443.886
First Column, -x and 5 third column, -x and 2
Answer:
90 g of water should be added and he will make 900 g of solution.
Step-by-step explanation:
Let x g be the amount of salt Ilya add to 810g of water to make 10% solution. Then 810+x g is the amount of new solution. Thus,
810+x - 100%,
x - 10%.
Mathematically,

So 90 g of water should be added and he will make 810+90=900 g of solution.