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what have you made for a table?
make a rectangle and subdivide it into 2 rows and 3 columns ... label it.
use the draw button and give it a shot
now what are we told? Out of the 50 students in the age group 7-12 years who participated in the survey, 23 liked adventure or biography. out of 50, 23 like a or b, what should we do with these numbers? any ideas?
put them in for a & b on the column
sure, 23 for ab, and 50 for age1 row makes sense |dw:1432951010408:dw| now we told The total number of students of both age groups who liked detective books was 28. where does 28 go?
lets make a simpler table, same info but aub is one column |dw:1432951128536:dw| we can play with this one just the same
its goes right there ?
good try but no The total number of students of both age groups who liked detective books was 28. the total of d is 28, so the total of the column is 28 |dw:1432951259190:dw| and we can use x and y for some unknowns. x is what we want to know, how do you spose we find it now?
x + 23 = y y + 28 = 100, therefore x + 23 + 28 = 100, solve for x
does it make sense?
yea so it would be 49 ?
23. 28, 40+11 51 100 50 49 ... yep
can you help with another one ?
dunno yet, close this and post a new question. when they pots get long the system starts to freeze up