5/4p ,multiply and convert the equation,expand the fraction,multiply the numbers,write as a product. Hope this helps!!
Let 
be the volume of 20% solution, 
the volume of the 60% solution. We want a total volume of 400 mL in the final mixture, so
Each mL of either solution will contribute a corresponding concentration, and in the final mixture we want the 400 mL to have a 40% concentration, which means we should also have
Solve the system and we get 
.
29
29 ÷ 4 = 7 R1, because 28 divided by for is 7
Answer:
36
Step-by-step explanation:
it is $2 a bulb and you divide 72.50 into 2 or vise versa and bam you got your awnser. hope this helps
Answer:
10c^3 -30c^2 + 10c -30
Step-by-step explanation:
2c(5c^2+5) - 6(5c^2+5)
= 10c^3 + 10c - 30c^2 - 30
= 10c^3 -30c^2 + 10c -30
