Asked by Angelina
of 50 students surveyed, 22 have a skateboard, and 18 have roller shoes. of those, 6 students have both. how many students have neither a skateboard nor roller shoes? i don't know how to solve this one
Answers
Answered by
Angelina
is is not 4 students btw.
Answered by
Angelina
please help me
Answered by
Angelina
PLEASE HELP ME MRS.SUE IT'S URGENT
Answered by
MathMate
The easiest way is to make a Venn diagram (which you probably know how to do).
Draw a box containing 50 students.
Draw a circle containing 22 skateboards
Draw another circle, overlapping the first, with 18 roller shoes.
The overlap represents 6 students with both.
So the number of those who have ONLY skateboards is 22-6=16
Number of students with ONLY roller shoes is 18-6=12.
Add those up (ONLY skateboards, ONLY roller-shoes, and BOTH) and subtract from 50 would give the number of students with neither.
Draw a box containing 50 students.
Draw a circle containing 22 skateboards
Draw another circle, overlapping the first, with 18 roller shoes.
The overlap represents 6 students with both.
So the number of those who have ONLY skateboards is 22-6=16
Number of students with ONLY roller shoes is 18-6=12.
Add those up (ONLY skateboards, ONLY roller-shoes, and BOTH) and subtract from 50 would give the number of students with neither.
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