40 gallons / 5 minutes = X gallons / 20 minutes:
Cross multiply:
40 * 20 = 5 *x
800 = 5x
Divide both sides by 5:
x = 800/5
x = 160 gallons after 20 minutes.
There are 3 20 minute periods in an hour
160 x 3 = 480 gallons in one hour.
Answer:
$1,109.62
Step-by-step explanation:
Let's first compute the <em>future value FV.</em>
In order to see the rule of formation, let's see the value (in $) for the first few years
<u>End of year 0</u>
1,000
<u>End of year 1(capital + interest + new deposit)</u>
1,000*(1.09)+10
<u>End of year 2 (capital + interest + new deposit)</u>
(1,000*(1.09)+10)*1.09 +10 =
<u>End of year 3 (capital + interest + new deposit)</u>
and we can see that at the end of year 50, the future value is
The sum
is the <em>sum of a geometric sequence </em>with common ratio 1.09 and is equal to
and the future value is then
The <em>present value PV</em> is
rounded to the nearest hundredth.
Answer:
Step-by-step explanation:
Answer:
The answer is yes
Step-by-step explanation: