D. Infinitely many because the lines will never Intersect which means there are infinitely solutions
The answer would be letter d
Well, it says that they got heads 28 times by flipping the coin 75 times, so to find the probability, you just do this : 28/75 = 0.373333333.
So, the correct answer is A.
Answer : Marcia salt solution has more concentration than Bobby salt solution
The concentration of Marcia salt solution is 1kg/3L= 0.33kg/L
It's a bit harder to count Bobby salt solution since you need to convert the pounds into kg and the pints into Liter. If you don't do that, you can't compare the concentration. The calculation would be:
2 pounds/ 15pints x (1kg/2.2lb) x (1L/2.1pints) = 0.02889 kg/L
Rounded up into hundredth = 0.03kg/L
Answer:
D
Step-by-step explanation:
