we know that
Ten thousand is equal to----------> 
so
ten thousands divided by 
is equal to
therefore
<u>the answer is</u>
The positive trend among the homework scores and the test scores would reveal that if a student does well in homework, he is likely to do well in exams. This can be explained in the sense that the homework will serve as the practice for the student before finally taking the exam.
To answer this, write a system of equations and use one to solve the other.
b + 2c = 2000 or b = 2000 - 2c (substitute this in for b in the 2nd equation)
2b + 3c = 3300
2 (2000 - 2c) + 3c = 3300
4000 - 4c + 3c = 3300
4000 -c = 3300
-c = -700
c = 700 calories
He burned 700 calories per hour canoeing and 600 calories per hour playing basketball (2000 - 2 x 700).
