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?
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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)
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Answer:
A. y=x-1
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Step-by-step explanation:
Look at the photo below for the details.
:)
Answer:
The answer is D
Step-by-step explanation:
The slope of her function represents the amount she earns per door that she knocks on.
1 meter = 0.1 decameters
0.1 * 250 = 25
So she used 25 decameters of creme paper.
