The original formula for the volume of a cone is
O.K. You give the approximate value of pi in the formula.
We have:
Substitute:
Answer: 7 cm.
First. You have to look at what kind of proportionality it is.It is an Inverse Proportion.so you see the rate of change is 2.3
To find how many gallons in 12 min,
36 ?
---- = -----
12 1
Cross multiply
36x1=36
12x?=36
36/12=3
The unit rate is 3 gallons in 1 minute.
I hope I helped!
Seb must confirm his records are accurate and include all transactions.
The time for the job for which the two company are the same is 16
<h3>How to form the equation and find the cost?</h3>
A yard cleanup service charges a $345 fee plus $16.25 per hour. Therefore,
using linear equation,
y = mx + c
where
Therefore,
y = 345 + 16.25x
Another cleanup service charges a $213 fee plus $24.50 per hour. Therefore,
y = 213 + 24.50x
Hence, the time when both cost are the same is as follows;
213 + 24.50x = 345 + 16.25x
213 - 345 = 16.25x - 24.50x
-132 = -8.25x
x = 132 / 8.25
x = 16
learn more on equation here: brainly.com/question/2072580
