4 because if you add 4 and 8 that would be 12
Answer:
its 11/4.5
Step-by-step explanation:
How much of each solution should the teacher mix together to get 105 ML of 60% sugar solution for an experiment?
1. Look at how 60% is closer to the solution of lower concentration (50%). You can deduce that you will be mixing a higher volume of the 50% solution.
2. All 4 answers add up to 105ml.
3. The intuitive answer is the first option:
70 ML of the 50% solution and 35 ML of the 80% solution
4. Let's check whether point 3 is true.
70ml/105ml X 0.5 + 35ml/105ml X 0.8 = (35 + 28)/105= 63/105= 60% / 105 ml = 105ml of 60% sugar solution
Answer:
168 inches
Step-by-step explanation:
The amount needed is the perimeter.
Perimeter = 2(L+W)
L = 56
W = 28
Perimeter = 2(56+28) = 168inches
