1.1 Purposeful Practice

Solve for x by cross multiplying

If 5 cm on a map represents 5 km of actual ground, how many centimeters would 15 kim of actual ground be on the map?

If the ratio of yellow pigment to blue pigment in a shade of green paint is 2:3, how many drops of yellow paint will be needed if 12 drops of blue are used?

The ratio teeth on a pair of driving gears is 13:6. If the larger gear has 52 teeth how many teeth does the smaller gear have?

If a machine can produce 85 parts in 40 minutes, how many parts can be produced in 8 hours? (60 minutes = 1 hour)

Property taxes are based on the value of the property. The tax on a house valued at $1,900,000.00 is $6,500.00. What is the tax on a house that is valued at $790,000.00?