Choose a system of equations with the same solution as the following system: 4x − y = −11
2x + 3y = 5

A. 12x − 3y = −33
10x − 6y = −38

B. −4x − 9y = −21
−2x − 7y = −27

C. 4x + 3y = 5
10x + 5y = −1

D. 2x − 4y = −16
4x − 4y = 44

B

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)

answer: a. 13/44

step-by-step explanation: judging by the information given to us, we are looking for experimental probability. we can see that 13 males have chosen chocolate ice cream. there are 44 ice creams in total (remember that the total is always the denominator). so our answer is 13/44.