At an assembly 7 out of the first 10 students who entered the gym were carrying a backpack. Based on this information, if 700 students were at the assembly, how many students could be expected to be carrying a backpack?
Accepted Solution
A:
7 out of 10 were carrying a backpack...and 3 out of 10 were not that means 7/10 of the total students had backpacks and 3/10 of the total students did not
7/10 * 700 = 4900/10 = 490 had backpacks <== 3/10 * 700 = 2100/10 = 210 did not