Answer:
I think it is 2 hrs... if there are not any extra variables.
Step-by-step explanation:
First off, let's convert the percentages to decimal format, so our 77% turns to 77/100 or 0.77, and our 55% turns to 55/100 or 0.55 and so on
now, the sum of both salines, must add up to the 77% mixture, let's say is "y"
so, 11 + 4 = y, and whatever the concentration level is, must also sum up to the mixture's concentration of 77%
anyway thus

solve for "x"
Answer:
4.4
Step-by-step explanation:
4 (4.4) ≥ 18 does not make sense. 4 x 4.4 = 17.6, which is not more than or equal to 18.
Answer:
2 cups per teaspoon, 2 cups/1 tsp
Step-by-step explanation:
to get the teaspoon amount to 1 (you have to for a unit rate), you multiply both sides by 4.
1/2 x 4 = 2
1/4 x 4 = 1
Answer:
The amount of interest earned would be $134.87 for a total of $634.87 after 6 years.