A nurse must mix a 20% solution of medication in an existing container of water. The container currently holds 12 ounces of wate
1 answer:
Answer:
3 ounces of medication to be added to get 20%solution of medication
Step-by-step explanation:
To find:
The amount of medication to be added to 12 ounces of water to get a 20% solution
Let the amount of medication to be added =x
So total amount of mixture = amount of water + amount of medication
= 12+x
% medication = (amount of medication÷total amount of the mixture)× 100
Therefore
% medication =( x÷12+x)×100
20 =( x÷12+x)×100
X 100
20(12+x) =100x
240+20x =100x
100x-20x =240
80x =240
x =240÷80
x=3
so 3 ounces of medication to be added to get 20%solution of medication
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Answer:
1
Step-by-step explanation:
let G be the number of grand croisssants, and P the number of petit croissants :
we have that 1 ounce of flour and 2 ounces of butter result in one G.
additionally, we have that 1/4 ounce of flour and 1/3 ounce of butter result in one P.
Ralph has 4 ounces of flour and 6 ounces of butter, If he bakes more than 1 G then he will never use all of his ingredients!, let's see:
1 G:
he now has 3 ounces of flour, and 4 ounces of butter,
now we need to figure out how many P's we would obtain with such amounts:
let x be the number of P's
which is reasonable, Ralph can bake 12 P's,
now with more than 1 G:
2G:
Ralph has now 2 ounces of flour and 2 ounces of butter, now we have to figure out that x is the same using the remaining ingredients
This is impossible.
3G:
he runs out of butter.
There is the answer, he is able to bake 1 grand croissant and 12 petit croissants