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anonymous
 one year ago
Sally made the conjecture that the sum of any two prime numbers is a prime number.
Which equation is a counterexample to her conjecture?
A. 15+4=19
B. 2+5=7
C. 3+11=14
D. 2+11=13
anonymous
 one year ago
Sally made the conjecture that the sum of any two prime numbers is a prime number. Which equation is a counterexample to her conjecture? A. 15+4=19 B. 2+5=7 C. 3+11=14 D. 2+11=13

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Deadpool117 @mathmate @mathstudent55

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1well, we want an example of two prime numbers added together to make a number that isn't prime, so between 19, 7, 14, and 13, which one is NOT prime?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.014 is not a prime number @Vocaloid

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1good job! so which one do you think is the answer?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think that the answer should be B

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1no, please try again and look at the answer choices... which one has a sum of 14?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh so the answer would be c

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Vocaloid Thanks for the help
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