Question

I need help with two and three

Answer 1

Answer:

2) Imagine that x (weeks) is the number of weeks it takes for both of them to have the same amount of money:

We have the equation:

435 + 25x = 875 - 15x

25x + 15x  = 875 - 435

40x           = 440

x                = 440/40 = 11 (weeks)

3) Since we have 2500 bacteria at the start and the number of the bacteria will tripple every month, we have:

The number of bacteria after 10 month is:

  2500 + 2500 . 3^10

= 2500 + 2500 . 59049

= 147,625,000

Answer 2

#2) 435+25x=875-15x

40x=440

x=11

the answer is 11 weeks.

#3) 2500(3x) for x=10

2500(3*10)

2500(30)

7500

the answer is 7500 bacteria after 10 months.