Acompany ships sand to customers for their aquariums. to ship the sand, they use tubes with a 4 cm radius and cut the tubes to whatever height is needed. the sand they sell has a density of 1.41 grams per cubic centimeter. if jerry buys 2,100 grams of sand, then approximately how high will the tube be that the sand is shipped in?

we know that

volume of a cylinder (tube)=pi*r²*h

in this problem

r=4 cm

Volume of a cylinder (tube)=pi*4²*h> V=16*pi*h cm³> equation 1

density=mass/volume> solve for volume

volume=mass/density

mass=2,100 gr

density=1.41 gr/cm³

so

V=2,100/1.41> V=1,489.36 cm³> equation 2

equate equation 1 and equation 2

16*pi*h=1,489.36 h=1,489.36/(16*pi)> h=29.63 cm

therefore

the answer is

the high of the tube will be 29.63 cm

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

the answer is 99.