Answer:
Kim should buy 11 and 13 of each pack.
Step-by-step explanation:
Given:
Jackson Stationary sells cards in packs of cards in 11 and envelopes in packs of 13.
If Kim wants 143 in total.
Now, to find each pack Kim should buy.
Number of cards Jackson stationery sells in packs of cards = 11.
Number of envelopes in one pack = 13.
Total Kim wants = 143.
So, to get the number of each pack we find the prime factors of 143.
[tex]Prime\ factors\ of\ 143=11\ and\ 13.[/tex]
Therefore, Kim should buy 11 and 13 of each pack.
