The function p(d)=1+d/33, gives the pressure, in atmosphere (atm), at a depth d in the sea (d is in feet). Note that p(0)=1, p(33)=2, and so on. Find the pressure at 90 feet. The pressure at 90 feet is ___atm. (Type an integer or a simplified fraction).

Question

anonymous · Answer

Hi jim...i got my answer in decimal, but i need to know how to figure out the simplified fraction...

jim_thompson5910 · Answer

p(d)=1+d/33


p(90)=1+90/33


p(90)=33/33+90/33


p(90)=(33+90)/33


p(90)=123/33



So the pressure at 90 ft is 123/33 atm

anonymous · Answer

so i don't need to divide 123/33 to get the atm?

jim_thompson5910 · Answer

oh wait...lol forgot to reduce

jim_thompson5910 · Answer

you can divide each term by 3 to get 


41/11

jim_thompson5910 · Answer

So the answer is 41/11

anonymous · Answer

haha...divided 123/33 and got 4.72...

jim_thompson5910 · Answer

more like 3.72, but they don't want a decimal answer, they want a fraction or an integer

anonymous · Answer

oh ok, so i had my answer right the first time simplifying

jim_thompson5910 · Answer

yeah if you got 41/11

anonymous · Answer

thats right..yes i did..thank you.

jim_thompson5910 · Answer

yw