19 is proportional to which of the following numbers?
190%
4.76
4/76
76/4
The Correct Answer is D
To determine which number is proportional to 19, we need to identify which option represents the same ratio or value as 19.
190%:
Convert 190% to a decimal: 190% = 
= 1.91
19 is not proportional to 1.9. Therefore, the option is not correct.
4.76:
Compare 19 to 4.76: 19 is not proportional to 4.76. Therefore, the option is not correct.
:
Simplify 
: 
= 
Compare 19 to 
: 19 is not proportional to 
. Therefore, the option is not correct.
:
Simplify 
: 
=19
19 is proportional to 19. Therefore, the option is not correct.
Therefore, the correct answer is 
.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
To determine if the nurse has enough medication, we need to calculate the total amount of medication used and compare it to the one-ounce vial.
- Morning Dose:
ounce - Afternoon Dose:
ounce
First, find a common denominator to add these fractions. The least common multiple of 8 and 7 is 56.
Convert each fraction to have a denominator of 56:
- For
:
= 
= 
- For
:
= 
= 
Add these fractions:
+ 
= 
So, the total amount of medication used is 
ounce.
The vial contains 1 ounce. The amount of medication remaining in the vial is:
1− 
= 
− 
= 
Since 
ounce is needed more to make up for the used amount, the nurse needs: 
of an ounce more.
Therefore, the correct answer is:
No, the nurse needs 
of an ounce more.
Correct Answer is B
Explanation
To find out how many days it takes for a culture of 3000 cells growing at a rate of 7% per day to increase by 630 cells, follow these steps:
Determine the daily growth:
Dailygrowthrate=7%=0.07
Calculate the daily increase in cells:
Dailyincrease=3000×0.07=210cellsperday
Determine the total increase needed:
Totalincreaseneeded=630cells
Calculate the number of days needed:
Numberofdays = 
Numberofdays = 
= 3days
Therefore, the correct answer is: 3 days
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