A school district has a simple question: If students take their math classes in the morning instead of in the afternoon, will th
eir test scores improve?
In 20 words or fewer, describe what is being measured in this example and what variable is being manipulated or changed.
2 answers:
Answer:
Yikes wish I could help
Step-by-step explanation:
Answer:The students ability to perform better or worse is being measured.The time diffrence is being manipulated.
Step-by-step explanation:
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Answer:
Sarah
Step-by-step explanation:
Alice: 75%
Mary: 80%
Sarah: 85%
Ellen: 60%
These are the equations given:
31=B+J
B=2J+4
So you substitute B=2J+4 into 31=B+J
31=2J+4+J
Solve
31-4=3J+4-4
27=3J
27/3=3J/3
9=J
Jake has 9 cd's.
