Maths-
SAT
Easy
Question
2,000 − 61k = 48
In 1962, the population of a bird species was 2,000. The population k years after 1962 was 48, and k satisfies the equation above. Which of the following is the best interpretation of the number 61 in this context?
- The population k years after 1962
- The value of k when the population was 48
- The difference between the population in 1962 and the population k years after 1962
- The average decrease in the population per year from 1962 to k years after 1962
The correct answer is: The average decrease in the population per year from 1962 to k years after 1962
2000 - 61 k = 48
Here, k is the number of year's & 61 is the average decrease in the population per year from 1962 to k years after 1962.
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|
Time (seconds) |
Velocity on Mars (meters per second) |
|
0 |
0 |
|
4 |
14.8 |
|
8 |
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|
Time (seconds) |
Velocity on Mars (meters per second) |
|
0 |
0 |
|
4 |
14.8 |
|
8 |
29.6 |
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Data set A |
25,550 |
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49,150 |
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73,670 |
118,780 |
126,040 |
|
Data set B |
22,860 |
55,020 |
173,730 |
300,580 |
358920 |
456,170 |
603,300 |
data sets in the table above?
|
Data set A |
25,550 |
40,430 |
49,150 |
62,590 |
73,670 |
118,780 |
126,040 |
|
Data set B |
22,860 |
55,020 |
173,730 |
300,580 |
358920 |
456,170 |
603,300 |
data sets in the table above?
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Roof type |
||||
|
|
Asphalt shingle |
Slate |
Cedar shake |
Total |
| Single story |
9 |
4 |
2 |
15 |
| Two story |
20 |
10 |
3 |
33 |
| Total |
29 |
14 |
5 |
48 |
|
Roof type |
||||
|
|
Asphalt shingle |
Slate |
Cedar shake |
Total |
| Single story |
9 |
4 |
2 |
15 |
| Two story |
20 |
10 |
3 |
33 |
| Total |
29 |
14 |
5 |
48 |
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|
Day |
Number of riders |
| Monday |
612 |
| Tuesday |
798 |
| Wednesday |
655 |
| Thursday |
773 |
| Friday |
808 |
| Saturday |
480 |
| Sunday |
229 |
The number of people who rode a certain bus each day of a week is shown in the table below.
|
Day |
Number of riders |
| Monday |
612 |
| Tuesday |
798 |
| Wednesday |
655 |
| Thursday |
773 |
| Friday |
808 |
| Saturday |
480 |
| Sunday |
229 |
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