Problem-Solving and Data Analysis: Ratios, Rates, Proportional Relationships — Quiz 3

Questions in this quiz (9)

1. An object travels at a constant speed of $$8$$ centimeters per second. At this speed, how long, in seconds, will it take the object to travel $$64$$ centimeters?

   • 8

2. The number of deer in a $$245$$-square-mile area is estimated to be $$4410$$. What is the population density, in deer per square mile?

   • $$16$$
   • $$18$$
   • $$20$$
   • $$24$$

3. In the table above, the ratio of $$y$$ to $$x$$ is constant. What is the value of $$k$$?

   • $$100$$
   • $$120$$
   • $$150$$
   • $$300$$

4. An object travels at a constant speed of $$15$$ centimeters per second. At this speed, how long, in seconds, will it take the object to travel $$135$$ centimeters?

   • $$6$$
   • $$9$$
   • $$12$$
   • $$15$$

5. Luis converts $$6400$$ pesos to US dollars. The exchange rate is $$1$$ peso $$=0.08$$ dollars. A $$5\%$$ fee is applied after conversion. How many US dollars does Luis receive?

   • $$486.40$$
   • $$512.00$$
   • $$480.00$$
   • $$505.60$$

6. A printer produces $$55$$ posters per minute. At this rate, how many posters does it produce in $$1$$ hour?

   • 3300

7. The ratio of the length of segment $$AB$$ to segment $$CD$$ is $$7:2$$. If $$AB=140$$, what is the length of $$CD$$?

   • $$20$$
   • $$30$$
   • $$40$$
   • $$70$$

8. The ratio of $$x$$ to $$y$$ is $$5:3$$. If $$x=75$$, what is the value of $$y$$?

   • $$30$$
   • $$40$$
   • $$45$$
   • $$50$$

9. A device operates at a depth of $$52$$ fathoms. What is the depth in feet? $$(1\text{ fathom}=6\text{ feet})$$

   • $$260$$
   • $$300$$
   • $$312$$
   • $$360$$