8.
John buys some boxes of pencils and some packets of pens for people to use at a
conference
There are 40 pencils in a box.
There are 15 pens in a packet.
John gives one pencil and one pen to each person at the conference,
He has no pencils left.
He has no pens left.
How many boxes of pencils and how many packets of pens did John buy?

He bought 3 boxes of pencils and 8 boxes of pens.

Step-by-step explanation:

Multiples of 15: 15, 30, 45, 60, 75, 90, 105, 120

Mulitples of 40: 40, 80, 120

This means that there are 120 people at the conference, and that he bought 3 boxes of pencils (40x3=120) and 8 boxes of pens (15x8=120)

lo.lll

step-by-step explanation:

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.