The formula for volume of a cylinder is : V = PI x r^2 x H
for both questions, plug in the known information and solve for the unknown:
Q1) V = 450, H = 8
so 450 = 3.14 x r^2 x 8
450 = r^2 x 25.12
r^2 = 450 / 25.12 = 17.914
r = sqrt(17.914) = 4.23 rounded to nearest tenth = 4.2 inches
Q2) V = 500, r=6
500 = 3.14 x 6^2 x H
500 = 3.14 x 36 x h
500 = 113.04 x h
h = 500 / 113.047 = 4.42 = 4.4 inches
1.25 gallons
so we know 0.5 gallons makes 1 pound, and we know that there are at least 2 pounds of butter made.
so we know that there is 1 full gallon of cream used.
however, there is also .5 pounds of butter, so we need to find out the other half.
to do this, we need to split the .5 gallons of cream in half, making 0.25
then, we add 1 + 0.25 gallons to equal 1.25 gallons of cream needed to make 2.5 pounds of butter
Hold on let me try to help let me figure it out for you
Answer:
About 2,800 hours of sleep per year
Step-by-step explanation:
Sleep per day= 7 hours 45 minutes
7 hours 45 minutes=465 minutes
Sleep per day =465 minutes
Sleep per year=365 days × 465 minutes
=169,725 minutes
There are 60 minutes in one hour
Divide 169,725 by 60 minutes
We have,
169,725/60
=2828.7500000 hours
Total sleep in a year is about 2,800 hours
Answer:
not 100% sure but im pretty sure its C. Hope this helped!!
