Answer:
notation I believe
Step-by-step explanation:
Answer: 5489
Step-by-step explanation:
Given the following :
Growth rate (r) = 19% per hour
Sample culture in population = 2300
Size of sample after 5 hours =?
Using the exponential relation:
P = Po * r^t
P = population after 5 hours
Po = Initial sample population
t = time
P = 2300 * (1 +19%)^t
P = 2300 ×(1 + 0.19) ^5
P = 2300 * 1.19^5
P = 2300 * 2.3863536599
P = 5488.61341777
P = 5489 (nearest integer)
10*8=80
3*8=24
80-24=56
You would save $56.00 in 8 weeks
If he makes $8 per hour while babysitting, then if he works 3 hours - then he’d get $24 for babysitting.
He still has to make $176.
He can work 18 hours, if he uses up 3 hours babysitting, he has 15 hours left.
15 hours times $15 = 225 (too much)
12 hours times $15 = $180 ( he saves three hours)
He has to do 12 hours of life guarding to meet his goal - he will have three spare hours.
Sorry if I’m wrong, I think I’m right tho
