Jenny was interested in studying how much gas a car uses at different speeds. Jenny did one test with her mother's car and found that it used about 3 percent more gas when speed increased by 5 miles per hour.
How can Jenny make the results of her investigation more reliable?
A. redo the steps of the experiment in a different order
B. communicate her results immediately after the one test
C. repeat the investigation several times
D. avoid recording any data during the experiment
Answers: 1
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Jenny was interested in studying how much gas a car uses at different speeds. Jenny did one test wit...
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