Answer:
Step-by-step explanation:
If you had a solid cylinder, in order to find the amount of material that makes up that solid cylinder, you would find the volume using the radius of 4 (half of the diameter 8). BUT we want to know the volume of the solid with the radius of 4 minus the solid that has a radius of 2.5 (half of the diameter 5).
That's volume outer - volume inner. To find the outer volume:
so
and
and do the same for the inner volume:
and
Subtract the inner from the outer:
If you need your answer in decimal form, then the volume is
9189.16 cm³
Answer: 1 gallon costs 0.40 $
Step-by-step explanation: 6 gallons / 15$ = 0.4 gal/$
n = a number
2n = twice a number
2n - 7 = seven less than twice a number
Answer:
the answer is x= 3 and y= -1
Offmind's Answer:
3.75
Offmind's Step-by-step explanation:
6 x 5 = 30
30/8 = 3.75
3.75 in Fraction Form = 3
Please mark Brainliest if this helped
Thanks!
-<em>Offmind</em>
