Mr. Ramirez Use the information to answer questions 12 – 14.

Mr. Ramirez purchased 20 concert tickets for a total of $225. The concert tickets cost $15 for adults and $10 for children under the age of 12.

Question 3 (1 point)
Write a system of equations to represent the given scenario. Use the variables “a” for adults and “c” for children.

here the number -5 is all of the following except a rational number.

step-by-step explanation:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation: