Two bags of cereal are packed in a box. The total weight of the box and the two bags of cereal is 42.00 ounces. One bag of cereal weighs 12.24 ounces, the other weighs 16.08 ounces. How much does the box weigh? A 12.78 ounces
B 12.96 ounces
C 13.5 ounces
D 13.68 ounces

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)

3; 9 is 8 to -4

step-by-step explanation: