Respuesta :
Answer:
B. $25.50
Step-by-step explanation:
On this question you have to subtract 6 dollars from one of the answers and add that same amount back on because that would equal the total amount of lunch money. A wouldn't work because 31.50-6+31.50 is over 45 dollars. When you have 25.50-6+25.50 you get 45!
Answer:
B. $25.50
Step-by-step explanation:
d = how much money Marcos spent
k = how much money Adelyn spent
d + k = 45
k = d - 6
rearrange the first equation to . . .
k = 45 - d
. . . and plug it into the other equation.
45 - d = d - 6
45 + 6 = d + d
51 = 2d
d = 25.50
hope this helps !