Question 143316

Let x=amount of water needed

Now we know that the amount of pure fertilizer before the mixture takes place (5 cm^3)(Note: 5cm^3 *100% or 5cm^3*1 or 5cm^3) has to equal the amount of pure fertilizer in the final mixture 0.01(5+x) so our equation to solve is:

5=0.01(5+x) get rid of parens

5=0.05+0.01x  subtract 0.05 from each side

5-0.05=0.05-0.05+0.01x  collect like terms

4.95=0.01x  divide each side by 0.01

x=495 cm^3------------------------amount of water needed


CK

5cm^3=0.01(5cm^3+495cm^3)
5cm^3=0.01(500cm^3)
5cm^3=5cm^3

Hope this helps-----ptaylor