Help ASAP When you use elimination to solve the following system, what is a good first
step?
2x - 5y = 4
2 + 3y = 11

a. Add 2y to the second equation.

b. Multiply the second equation by -2.

c. Solve the second equation for x.

d. Add the equations.

e. Multiply the second equation by 5.

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)

there is nothing below so i cannot

step-by-step explanation: