As x 3. Two pens and a pencil cost Rs 32. A pen and a pencil cost Rs 20. Taking the price
of a pen as Rs p and the price of a pencil as Rs q, construct a pair of simultaneous
equations and by solving the pair find the price of a pen and the price of a pencil.
​

x + 4/7

step-by-step explanation:

use cymath

a.) list the factors of 40.

1/2/4/5/8/10/20/40

b.) list the factors of 40 that represent the number of cans that could be on each shelf.

5

c.) how many different arrangements of cans are possible?

just one because if you put more on one shelf you will go way over 40 and the cabinet will probably break.

d.) what are the possible arrangements of the cans?

put 5 cans on each self to reach 40 cans in total.

e.) which arrangement uses all the shelves?

5 because you can put 5 cans on each shelf, and since there are 8 shelfs you are equally going to get 40 cans.

any of them that add up to 180 degrees.