Answer:
83%
Step-by-step explanation:
To convert fraction to percents, you have to divide the numerator by the denominator.
So 50 divided by 60 = .833333333333333
Now you have to convert this decimal to a percent by moving the decimal point 2 spaces to the right.
83.333333333%
On tests they usually round percents to the nearest whole percent.
So it would just be 83%
2 ↔ exponent
5 ↔ coefficient
7 ↔ constant
x ↔ variable
Hope it helps!
Let
Vco------------------- >Volume cone
Vcy------------------ >Volume cylinder
r= 8mm
hco----------- > height of cone=18 mm
hcy------------ > height of cylinder =54-18=36 mm
then
Vco=π*r² *hco/3--------- > π*8² *18/3=π*384 mm³
Vcy=π*r² *hcy--------- > π*8² *36=π*2304 mm³
the total cubic millimeters of sand=Vco+Vcy=π*384+π*2304=π*2688
if 10π cubic millimeters --------------------- > 1 seg
π*2688--------------------------------- X
X=π*2688/10π=268.8 seg
the answer is 268.8 seg
Do you have gmail hangouts? We can go over all of it and send pictures/screenshots of it as well if you want to. I'm here.
It would take 8 months for the project to complete
