Friday

January 30, 2015

January 30, 2015

Posted by **stacey** on Thursday, November 10, 2011 at 6:57pm.

- math -
**Steve**, Thursday, November 10, 2011 at 7:24pmIf you count all the students with computers, and then count all those with cassettes, you count twice the ones that have both. So, adjust the total accordingly.

30 students. 4 with nothing, leaves 26 with either computer or cassette or both

17+20 = 37, but there are only 26 students available, so there must be 37-26=11 with both. Just adding up the numbers counted 11 of them twice.

**Answer this Question**

**Related Questions**

Math - In Mrs Halls class of 30 students, 17 have computers at home and 20 have ...

Statistics - Suppose 52 of the students in class have a calculator and 14 have a...

Venn Diagrams - In a class of 50 students, 36 students have a sandwich in their ...

math - 48.Kate's class has between 40 and 51 students. Exactly of 75%of the ...

MATH - 3 OUT OF EVERY 4 STUDENT HAVE A COMPUTER AT HOME IF THERE ARE80 STUDENTS...

Math - There are 20 students in Mark's homeroom class. Ten percent of the ...

Math - On a math test,12 students earned an A. This number is exactly 25% of ...

math - There are x students in Mrs. Schwartz's third-grade class. One less than ...

math - can someone check my answer thank you The following pie chart represents ...

math(help) - please help me im completely clueless------------------------------...