The amounts of plastic waste generated in a region during two years were 32,400,000 tons and 20,300,000 tons. what was the total plastic waste generated over these two years in the region, expressed in scientific notation? 52.7 ⋅ 1014 tons 52.7 ⋅ 107 tons 5.27 ⋅ 107 tons 5.27 ⋅ 1014 tons

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)

she drove 134 miles

step-by-step explanation: