The attached diagram is a useful tool for working mixture problems. It shows the desired mix is
.. 1 kg of 30% gold
.. 3 kg of 10% gold
in a US gallon, there are approximately 3.79 Liters, in a Liter there are 1000 milliLiters, so 3.79 Liters is then 3.79 * 1000 milliLiters, namely 3790 milliliters.
since a gallon is then approximately 3790 mL, how many times does 5mL go in to 3790? 3790 ÷ 5 = 758.
since the child uses 5mL in 1 day, then 758 times that is 758 days.
Answer:
Step-by-step explanation:
part a = 1 x 4
part b = b
Yes, because the volume equals 2,000 and that equals 2
You can solve this system of the equations with graphical method or algebra method.
I solve this system with Gaus algorithm
first we divide second equation with number 3 and get x+10y=12
Than subtract first equation from second and get 5y=6 => y=6/5
now we replace y in the first equation and get x+5*(6/5)=6 =>x+6=6
=> x=0 (x,y)=(0,6/5)
Conclusion is that we have one intersection point between this two graphs.
Good luck!!!
