Question

HELPPPP PLEASEEEEE......
Admission to the zoo costs $15 for adults and $5 for kids. The total bill for your entire extended family was $390. This scenario can be modeled by the equation 15a + 5k = 390. Which of the following is not a possible combination of adults and kids?

9 adults and 51 kids

17 adults and 27 kids

21 adults and 15 kids

23 adults and 0 kids

Answer 1

lets take the first one if you do 9 x 15$ and 51 x 5$ does it equal 390?

Answer 2

no they dont

Answer 3

do the same for each one till you find the one that does not add up and that is your answer

Answer 4

so its A

Answer 5

yes

Answer 6

thanks