Two business men Mr. A and Mr. B invested a total of $10,000.00 in a business. the ratio of the amount of their contribution was 3.1.How much did Mr. B invest?

$2500

Step-by-step explanation:

Mr. B investments are equal to 1000,00 X 1/4

1000,00 X 1/4 = 2500

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)