A restaurant sells basic lunches for $6 and supreme lunches for $8. You buy 12 lunches, represented by the equation x + y = 12, where x is the number of basic lunches and y is the number of supreme lunches. The equation 6x + 8y = 76 represents the total cost. How many of each type of lunch did you buy?

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)

536

step-by-step explanation:

9x

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1