Approximate the value of 111 to the nearest tenth.

110

Step-by-step explanation: A tenth is every two digits numbers that ends with 0, if you have 111, you round it to 110. But if you have 115, you round it to 120, all this numbers (1,2,3,4) will be round to the tenth that goes before those numbers, that tenth is 110. All this numbers (5,6,7,8,9) will be round to the tenth that comes after this numbers

i used to know how to do this in 7th but i forget easily

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)