What is the answer and explanation to Sarai uses 4 cm3 of face wash each night. The cylindrical container of face wash is 10 cm tall and has a diameter of 5 cm. The container is half empty. How many more days will the face wash last her? Use 3.14 to approximate pi, and round your answer to the nearest whole number. need answer

So you have to calculate the volume

volume=height times area of base

area of base=area of circle=pi r^2

volume=hpir^2

we need radius but we are given diameter

2r=d

r=d/2

d=5

r=5/2=2.5

height=10

pi=3.14 for this question

so

volume=10 times 3.14 times 2.5^2

volume=31.4 times 6.25

volume=196.25

volume of face wash is 196.25

it is half empty

196.25 times 1/2=98.125 cm^3

so

4 cm^3 used every niehgt

so

x=number of nights

4 times x nights=volume of remaining

4x=98.125

divide boht isdes by 4

x=24.53

round to nearest whole number

25

answer is 25 days

RELATED: