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Curriculum
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Speed,
mph
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
Workkeys Curriculum Graphic Literacy Levels 9-7
Area rate
of coverage,
acre/hour
5.96
6.95
7.95
8.94
9.94
10.93
11.92
12.92
13.91
14.90
15.90
16.89
17.88
18.88
19.87
Engine
speed,
rpm
500
750
1,000
1,250
1,500
1,750
2,000
2,250
2,500
2,750
Flow rate,
gpm
1.0
2.5
4.0
5.5
7.0
8.5
10.0
11.5
13.0
14.5
The value for area rate of coverage (acre/hour) compared to speed (mph) is approximately:
▸
A) twice as large
B) Four times as large
C) Half as large
D)Fourth as large

Answer 1

The ratio is 2, which means that the area rate of coverage is twice as large at 6.0 mph compared to 3.0 mph.

So, the correct answer is Twice as large. So the option A is correct.

To determine the relationship between the area rate of coverage (acre/hour) and speed (mph), you can look at the data provided. The area rate of coverage increases as the speed increases. Let's compare the values for adjacent speeds:

- At 3.0 mph, the area rate of coverage is 5.96 acre/hour.

- At 6.0 mph, the area rate of coverage is 11.92 acre/hour.

Now, let's analyze the ratio of the area rate of coverage at 6.0 mph to the area rate of coverage at 3.0 mph:

`\[ \frac{11.92 \, \text{acre/hour}}{5.96 \, \text{acre/hour}} = 2 \]`

The ratio is 2, which means that the area rate of coverage is twice as large at 6.0 mph compared to 3.0 mph.

So, the correct answer is:

▸ A) Twice as large