Admission to the movies costs $8 for adults and $4 for kids. The total bill for your entire extended family was $72. This scenario can be modeled by the equation 8a + 4k = 72. Which is not a possible combination of adults and kids?
Answer

7 adults and 4 kids

8 adults and 2 kids

3 adults and 12 kids

5 adults and 6 kids

Question

Admission to the movies costs $8 for adults and $4 for kids. The total bill for your entire extended family was $72. This scenario can be modeled by the equation 8a + 4k = 72. Which is not a possible combination of adults and kids?
Answer
		
7 adults and 4 kids
		
8 adults and 2 kids
		
3 adults and 12 kids
		
5 adults and 6 kids

anonymous · Answer

plug in each to see which DOES not equal 72

mertsj · Answer

8(5)+4(6)=40+24=64
Doesn't seem like that one works since it does not equal 72

anonymous · Answer

8(7) +4(4) = 56+16 =72 ok
64 + 8 = 72 ok
24 + 48 = 72 ok
40 + 24 = 64 ****** your answer

anonymous · Answer

the answer is 7 adults 4 kids
7x8= 56
4x4=16
56+16=72