In New York City it rained 3.6 inches in July and 4.7 inches in august. What was the total rainfall for both months

8.3 inches

Step-by-step explanation:

The question simply requires one to get the sum of rainfall within the two months. Considering that the rainfall amount in July is given as 3.6 inches while for August is 4.7 inches then the sum will be 3.6+4.7= 8.3 inches. Note that during the addition of decimals, the numbers in the tenth part if added sum up to 0.7+0.6=1.3 then we write three, carry 1. Adding the carry over 1 to 3 and 4 we get 8. Therefore, the total rainfall in both months is 8.3 inches

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)