Bob wants to lose weight. he currently weighs 220 pounds. on average he is losing 5 pounds per week by eating 1000 calories a day. at this rate how many weeks will it take for bob to reach his goal of 175 pounds? what would be the constant?

9 weeks and the constant is 5 pounds

Step-by-step explanation:

Bob starts at 220 pounds, but his goal is 175. We subtract those two terms to find the number of pounds he is trying to loose. 220-175 = 45. Since we know that he is loosing 5 pounds a week, then we know to divide. 45/5= 9 weeks. The constant would be five because that factor doesn't change. He looses at a constant of 5 pounds.

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)