?Hot dogs come in packages of 8 and hot dog buns come in packages of 10. Which of the following shows how we cannot find the number of packages of each in order to obtain a perfect match of dogs and buns? What concept is used?
?
A. ?Prime factor 8 and 10 and find the LCM.
B. ?Find the union of the prime factors of 8 and 10: LCM concept
C. ?Prime factor 8 and 10 and find the GCF.
D. ?Find the smallest number that both 8 and 10 go into: LCM concept
E. ?Add 8's together and add 10's together until you find a common sum: LCM concept
Answer: C
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.
?
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? 
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