12 hours..........
+ - = 1
Multiply by 12 to clear the fractions
3t + 2t - 4t = 12
t = 12 hrs to fill the pool
Ok. Something times 90 = 7200.
Let something = x
90x = 7200
Divide both sides by 90.
90x/90 = 7200/90
x = 80
The other factor is 80.
The volume of the copper wire is 226.080 cm³ and the mass of the wire is 2,012.112 g/cm³.
Given that, the length of copper wire=200 m=200000 mm and the diameter of the copper wire=1.2 mm.
We need to find the volume of the copper wire.
<h3>What is the formula to find the volume of the cylinder?</h3>
The formula to find the volume of a cylinder is πr²h.
Now, the volume of the copper wire=πr²h=
mm³=226.080 cm³
If the density of copper is 8.9 g/cm³, find the mass of the wire.
We know that
.
⇒8.9 g/cm³=
⇒Mass=2,012.112 g/cm³
Therefore, the volume of the copper wire is 226.080 cm³ and the mass of the wire is 2,012.112 g/cm³.
To learn more about the volume of the cylinder visit:
brainly.com/question/16134180.
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She would have invested $1,000 because 1,000x0.45=450. I hope that helped you!