The least number of boxes and bags needed for 24 students to each have a pencil and an eraser are:
It is given that:
There are 8 pencils in a box.
and 12 erasers in a bag.
Now in order to provide all the 24 students with pencil and erasers we need to have:
3 boxes of pencil.
Since, 3×8=24 pencils.
and 2 bags of erasers.
Since, 2×12= 24 erasers.
Answer:
n= 24
Step-by-step explanation:
n +7 =31
Both side -7
n+7 -7 =31-7
Answer should be 5
a) Reflexive, Symmetric, Not Transitive
Given we have that and then thus the binary relation is reflexive. To show that is symmetric note that for we have which implies the symmetric. In fact, the relation is <u>not</u> transitive, for example note that and but .