Answer:
in 220 miles both plans will cost the same
Step-by-step explanation:
38 + .12m = 49 + .07m
38 + .05m = 49
.05m = 11
m = 11/.05
Answer:
in this problem we have
2,350 million
Remember that
1 million=1,000,000
so
2,350 million=2,350*1,000,000=2,350,000,000
convert to standard form
2,350,000,000=2.35*10^{9}
therefore
the answer is
2.35*10^{9}
Step-by-step explanation:
28.26 feet squared if using 3.14 for pi
<h2>
Answer:</h2><h2>
The correct option is d. (i) and (ii)</h2>
Step-by-step explanation:
The total miles covered per day = 45
No of commuting days in a week = 5
Total miles in a week = 45 * 5 = 225
The total amount spent on gasoline = $ 38
Cost of gasoline per gallon = $ 2.48
The number of gallons consumed per week = 
= 15.32 gallons of gasoline per week.
This confirms (ii) statement
The amount spend on gasoline per mile = 
= $0.17
This confirms (i) statement
The number of miles per gallon of gasoline = 
= 14.68 miles
The statement (iii) is false.
So we want to know what percentage of bees would survive a virus after 19 days of decay if the bee population has a half life of 5 days. So every 5 days 50% of bees die. Lets say that N is the number of bees before the virus. So after 5 days is 50% less bees, so 50% of N remains. After another 5 days again, 50% bees die, and 50% out of 50% is 25%. So after 10 days, 25% of bees remain or 25%N or 0.25*N. After another 5 days its 12.5 % of bees remain or 0.125*N. And after 4 days 40% more bees die. And that is 0.4*0.125*N = 0.05N. 0.05*100% is 5%. So after 19 days, 5% of bees remain and 95% of bees is dead.
