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)

4 0

3 years ago

X,y,z and l are proportional quantites, prove that : y–x/x = l–z/z

Vera_Pavlovna [14]

Answer:

y=24

Step-by-step explanation:

7 0

2 years ago

At the movie theatre, child admission is $5.90 and adult admission is $9.10. On Friday, 119 tickets were sold for a total sales

mafiozo [28]

Answer:

47550.501

Step-by-step explanation:

I multiplied them all together but i am not sure if i am correct...

3 0

2 years ago

Mariam Ali

Mekhanik [1.2K]

$\huge\star{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}\star$

18 ÷ 3

= 6/1

Option [a] 6 to 1 is correct !

7 0

3 years ago