After 40 minutes, Ralph has already painted (40/60)/12=1/18 of the fence
Lisa's speed is 1/15 fence/hour, Ralph's speed is 1/12 fence/hour, hence when they help each other their combined speed is 1/15+1/12=3/20
Thus we need to solve 3/20*x=17/18 thus x=170/27 hours (approx 6 hours 15 mins)
Answer:
6 or 3mL/hr, probably 3mL/hr
Step-by-step explanation:
If dopamine makes up half of the solution then you half the total mL/hr to 3. If it is the whole solution then it tells you the answer (6mL/hr). I'm not sure if the question is poorly worded or just how you typed it but it would be easier to answer if it was clearer.
Answer:
B. $1.92
Step-by-step explanation:
24*0.08(8% as a decimal)= 1.92
That’s easy just place 2.4 on top of 1.5 and do the math, I did it in the picture for you, since there are two decimal points one in 2.4 and the second in 1.5. So the answer is 3.60 as shown in the pic. Any questions ? Sorry the picture is sort of messed
