Key Calculations Quiz
In one day, a doctor saw 6 female patients and 8 male patients. What is the ratio of female to male when reduced to lowest terms? 3 : 4 2 : 3 6 : 8 1 : 2
3:4
A speech therapist saw 8 patients on Monday, 14 on Tuesday, 12 on Wednesday, 7 on Thursday, and 4 on Friday. What is the average number of patients the therapist saw each day this week? Eight Nine 10 11
9
In a proportion, what are the two outer terms called? Extremes Means Ratios Components
extremes
In a proportion, what are the two middle terms called? Components Means Ratios Extremes
means
What shows a relationship between like values? Ratio Percentage Decimal Equation
ratio
A proportion is an equation that shows the equality between two ____. Measurements Numbers Ratios Formulas
ratios
Which of the following ratios is reduced to lowest terms? 3 : 16 4 : 16 5 : 10 3 : 9
3:16
A health care worker is told to mix a solution of bleach and water in a ratio of 1 : 10. Which of the following demonstrates this ratio? 10 liters of bleach, 10 liters of water 10 liters of bleach, 1 liters of water 1 cup of bleach, 10 cup of water 1 gallons of bleach, 1 gallon of water
1 cup of bleach, 10 cup of water
A long-term care facility has 3 registered nurses and 12 nursing assistants. Which of the following is the correct way to express the ratio of registered nurses to nursing assistants? 1 : 3 1/4 0.4 20%
1/4
Which of the following proportions is parallel? 100 mg : 2 tablets :: X g : 2 tablets 10 mg : 1 tablet :: 10 g : X tablets 500 g : 2 tablets :: 1 tablets : X g 100 mg : 1 tablet :: 500 mg : X tablets
100 mg : 1 tablet :: 500 mg : X tablets
A hospital has 6 ambulances and 12 ambulance drivers. What is the ratio of ambulances to drivers when reduced to lowest terms? 1: 2 2 : 3 3 : 4 4 : 1
1:2
What is a mathematical average? A comparison of like values Rounding a number to the nearest whole number A number that represents a set of numbers An educated guess
A number that represents a set of numbers
Which of the following is NOT a reason to estimate? Calculating an approximate answer. Judging if a calculated result seems reasonable. Determining when an answer looks out of place. Deciding exactly how many of something you need.
Deciding exactly how many of something you need.
You want to quickly estimate the total cost of a couple of new office supplies you see in a catalog. Which of the following is the most time-efficient way to do so? Find a calculator, add the exact cost of the items, and then add sales tax and shipping Send an itemized list of the items to the business manager and ask if the office can afford the items. Round the prices to the nearest dollar, add them without a calculator, and decide if the purchase seems reasonable enough to pursue Go online, add the items to a shopping cart, and see what the total is.
Round the prices to the nearest dollar, add them without a calculator, and decide if the purchase seems reasonable enough to pursue
What is the rule for solving proportions? The product of the means is equal to the product of the extremes. The sum of the means is the product of the extremes. The product of the extremes is twice the product of the means.
The product of the means is equal to the product of the extremes.