anonymous
  • anonymous
HELPPPP PLEASEE :A survey was conducted among 100 students of age groups 7-12 years and 13-18 years to find their favorite book genre. The students had to select any one genre out of detective, adventure, and biography. Out of the 50 students in the age group 7-12 years who participated in the survey, 23 liked adventure or biography. The total number of students of both age groups who liked detective books was 28. Using a two-way table, compute the total number of students in the age group 13-18 years who liked adventure or biography. 23 27 49 51
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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amistre64
  • amistre64
what have you made for a table?
anonymous
  • anonymous
@amistre64 Can you help me make one ?
amistre64
  • amistre64
make a rectangle and subdivide it into 2 rows and 3 columns ... label it.

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amistre64
  • amistre64
use the draw button and give it a shot
anonymous
  • anonymous
okay @amistre64
anonymous
  • anonymous
|dw:1432950590967:dw|
amistre64
  • amistre64
|dw:1432950788838:dw|
amistre64
  • amistre64
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?
anonymous
  • anonymous
put them in for a & b on the column
amistre64
  • amistre64
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?
amistre64
  • amistre64
lets make a simpler table, same info but aub is one column |dw:1432951128536:dw| we can play with this one just the same
anonymous
  • anonymous
|dw:1432951210418:dw|
anonymous
  • anonymous
its goes right there ?
amistre64
  • amistre64
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?
amistre64
  • amistre64
x + 23 = y y + 28 = 100, therefore x + 23 + 28 = 100, solve for x
amistre64
  • amistre64
|dw:1432951383226:dw|
amistre64
  • amistre64
does it make sense?
anonymous
  • anonymous
yea so it would be 49 ?
amistre64
  • amistre64
23. 28, 40+11 51 100 50 49 ... yep
anonymous
  • anonymous
thanks :)
amistre64
  • amistre64
youre welcome
anonymous
  • anonymous
can you help with another one ?
amistre64
  • amistre64
dunno yet, close this and post a new question. when they pots get long the system starts to freeze up
anonymous
  • anonymous
ok

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