The data below represent the ages of people working at a store.
1 answer:
Answer:
The first step is sort the values on increasing order and we got:
18, 18, 19, 19, 19, 20, 22, 23. 25, 26, 31
And in order to find the first quartile we can separate the first 5 lowest values from the largest 5 values. And for this case we focus on these values:
18, 18, 19, 19, 19
And if we find the median of the last 5 values we can find the first quartile and we got:
The best answer would be:
19
Step-by-step explanation:
For this problem we have the following dataset:
18, 26, 19, 25, 19, 23, 31, 22, 19, 18, 20
The first step is sort the values on increasing order and we got:
18, 18, 19, 19, 19, 20, 22, 23. 25, 26, 31
And in order to find the first quartile we can separate the first 5 lowest values from the largest 5 values. And for this case we focus on these values:
18, 18, 19, 19, 19
And if we find the median of the last 5 values we can find the first quartile and we got:
The best answer would be:
19
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Answer:
Step-by-step explanation:
The correct question is
Susan works as a tutor for $10 and hour, and as a waitress for $11 an hour. This month, she worked a combined total of 90 hours at her two jobs. Let t be the number of hours Susan worked as a tutor this month. Write an expression for the combined total dollar amount she earned this month
Let
t -----> the number of hours that Susan work as a tutor
y ----> the number of hours that Susan work as a waitress
z ---> the combined total dollar amount she earned this month
we know that
-----> equation A
we know that
The combined total dollar amount she earned this month is equal to the number of hours that Susan work as a tutor multiplied by $10 plus the number of hours that Susan work as a waitress multiplied by $11
----> equation B
substitute equation A in equation B
therefore
The expression for the combined total dollar amount is $(990-t)