17. The mass of a length of metal wire is 57g. When the wire is placed in a graduated cylinder with water, it displaces 12mL of water. What is the density of the wire? * 4.75 milliliters
4.75 cubic centimetres
0.21 milliliters
0.21 cubic centimeters

9514 1404 393

  4.75 g/cm³

Step-by-step explanation:

Density is the ratio of mass to volume. The density of the wire is ...

  (57 g)/(12 mL) = 4.75 g/mL = 4.75 g/cm³

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The usual units for density are g/cm³ or kg/m³. None of the offered choices seems to have the correct units.

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.