Answer:
22 Litres
Step-by-step explanation:
Hope it helps. NOT
Answer:
The Total value after 2 years=933.12
Step-by-step explanation:
The total value of Mary's investment after two years can be expressed as;
Total value=(Initial investment+Interest)
where;
For the first year,
Initial investment=$800
Interest=Initial investment×interest rate×time
where; Initial investment=800, Interest rate=8%, time=1 year
replacing;
Interest=800×(8/100)×1=$64
Interest=$64
Total value after 1 year=(800+64)=$864
For the second year,
Initial investment=$864
Interest=Initial investment×interest rate×time
where; Initial investment=864, Interest rate=8%, time=1 year
replacing;
Interest=864×(8/100)×1=$69.12
Interest=$69.12
Total value after 2 years=(864+69.12)=$933.12
The Total value after 2 years=933.12
9514 1404 393
Answer:
5 miles
Step-by-step explanation:
It may get a bit messy, but we can solve for the desired value directly. Let d = the distance walked (in miles). Then 20-d is the distance traveled in the car. The relevant relation is ...
time = distance / speed
The total travel time is 9:00 -6:50 = 2:10 = 2 1/6 hours = 13/6 hours. Here is the equation for total travel time.
total time = time spent walking + time spent riding
13/6 = (d/3) + (20-d)/30
Multiplying by 30 gives ...
65 = 10d + 20 -d
45 = 9d . . . . . . . . . . subtract 20
5 = d . . . . . . . . . . . . divide by 9
The girl walked 5 miles.
_____
<em>Check</em>
Her walking time was (5 mi)/(3 mph) = 5/3 h = 1:40.
Her riding time was (15 mi)/(30 mph) = 1/2 h = 0:30.
Her total travel time was 1:40 +0:30 = 1:70 = 2:10, as required.
1.62, 15/20, 16.2% is the answer