3 Answered Questions for the topic #helpneeded
How many 300 MB flash drives did John buy?
John bought some flash drives, some had a capacity of 400 MB and others 300 MB. If John bought 14 flash drives in total and the combined capacity of the flash drives are 4700 MB, how many 300 MB... more
What is the smallest number of science students who could be studying biology
If 20% of the science students at central high study only physics, 25% study only chemistry and the rest study only biology, what is the smallest number of science students who could be studying... more
which expression represents x was doubled and then increased by 25%?
A. 2x - 0.25x B. 0.25 - 2x C. 2(x-0.25x) D. 2x - (2x-0.25)