Answer:
Different scientists might perform the experiment differently
Step-by-step explanation:
8
round each number to the nearest 10, then
640 ÷ 80 = 8 ← estimate
Answer:
40
Step-by-step explanation:
36 = 90% × (number of questions)
36/0.90 = (number of questions) = 40 . . . . . divide by the coefficient of the variable
There were 40 questions on the test.
Yes it can, but jost once
To find this value, simply substitute the number 10 in for x in your equation:
The answer is 98.