I NEED HALP WITH THESE QUESTIONS

Algebra
Tutor: None Selected Time limit: 1 Day



It takes 15 electricians 24 days to wire a new housing subdivision. How many days would 18 electricians take to do the same job?

There are n gallons of gas in a tank. After x gallons have been used, in terms of n and x, what percent of the gas has not been used?


A

May 2nd, 2015

The number of electrician to the number of days are INVERSELY PROPORTIONAL

Therefore,

(number of electricians)(number of days) = constant

(15)(24) = 360

then, (18)(x) = 360   where x = number of days to wire a new housing subdivision

x = 360/18 = 20 days

-------------------------------------------------------------------------------------------------------

After x gallons have been used, then n-x gallons are left

Then, the percentage of gas that has not been used is

[(n - x) / n]*100 



May 2nd, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
May 2nd, 2015
...
May 2nd, 2015
Mar 23rd, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer