A pharmacist has 40% and 80% of iodine solutions on hand. How many liters of each iodine solution will be required to produce 4 liters of a 50% iodine mixture?
.
Let x = liters of 40% iodine
then
4-x = liters of 80% iodine
Using algebra:
.40x + .80(4-x) = .50(4)
.40x + 3.20-.80x = 2
3.20-.40x = 2
x = 4 liters (40% iodine)
80% iodine:
4-x = 4-4 = 0 liters needed (80% iodine)
Answer:
I'm doing a challenge. This is my answer. IDK.
Step-by-step explanation:
Answer:
X=0
Step-by-step explanation:
4x=0
divide both sides by 4
x=0/4
x=0
Answer:
27
Step-by-step explanation:
5×6-(6/2)
=30-3
=27
First find the area. 39*332=12,948. 12,948 is less than 15,000, so yes, she has enough bricks.
