SOLUTION: For every 1,000 cubic meters of air that comes through a filtering system , 0.05 gram of dust is removed.how many grams of dust are removed when 10^7 cubic meters of air have been
Algebra.Com
Question 304743: For every 1,000 cubic meters of air that comes through a filtering system , 0.05 gram of dust is removed.how many grams of dust are removed when 10^7 cubic meters of air have been filtered ?
(A) 5 (B) 50 (C) 500 (D) 5,000 (E) 50,000
Found 2 solutions by stanbon, mananth:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
For every 1,000 cubic meters of air that comes through a filtering system , 0.05 gram of dust is removed. How many grams of dust are removed when 10^7 cubic meters of air have been filtered ?
---
Proportion:
x/10^7 = 0.05/1000
---
x = 10^7(0.05/1000)
---
x = 10^4*0.05
---
Move the decimal point 4 places to the right to get:
---
x = 500
============================
Cheers,
Stan H.
============================
(A) 5 (B) 50 (C) 500 (D) 5,000 (E) 50,000
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
for every 10^3 cu. meters of air 0.05 gram dust
For 10^7 cu. meters. of air how much dust
10^7 *0.05 / 10^3
= 10^4 *0.05
= 500 grams of dust
RELATED QUESTIONS
A 20 gram alloy of platinum that costs P220 per gram is mixed with an alloy that costs... (answered by stanbon)
A barrel contains 100 gallons of solution that initially has a concentration of 10 grams... (answered by josgarithmetic)
A gold smith combined an alloy that costs $430 per gram with an alloy that costs $180 per (answered by stanbon)
How many grams of gold alloy that costs $4 per gram must be mixed with thirty grams of a... (answered by checkley75)
how many grams of gold alloy that costs $4 per gram must be mixed with 30 grams of a gold (answered by nyc_function)
A goldsmith combined an alloy that costs 430 dollars per gram with an alloy that costs... (answered by stanbon)
The world's longest bridge is 3 separate tunnles built side by side each is a half... (answered by Theo)
Solve the problem.
75) A sample of 250 grams of radioactive substance decays according... (answered by Tatiana_Stebko)
How many grams of a gold alloy that cost $4.00 per gram must be mixed with 30g of a gold... (answered by stanbon)