A frog is at the bottom of a 25-foot well. Each day he climbs up 5 feet, and each night he slips down 2 feet. How many days will
it take the frog to reach the top of the well?
The frog reached the top on the
day.
Be prepared to explain how you got your answer.

25/3

Step-by-step explanation:

In 1 day we have daytime and night time each 12 hrs

in the day time he climbs 5ft and at night he slips 2 ft

meaning he climbs a total of 3ft(5-2) each day

so to get the number of days he climbed uts 25ft /3 ft

Therefore he takes 25/3 days to reach the top

answer is approximately 8.33 days

Step-by-step explanation:

Each day progress:

After 7 days

Day 8:

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!