maddysarah maddysarah

01-03-2016
Mathematics

contestada

How much pure acid should be mixed with 6 gallons of a 60% acid solution in order to get an 80% acid solution?

Respuesta :

apologiabiology apologiabiology

01-03-2016

so pure=100%
x added

100%=1=pure

amount times purity=result

x=amount added
x times 1
6-x times (0.6) for te 60%
they add up to
6 times 0.8
solve
x+(6-x)0.6=6(0.8)
x=3

answer is 3 gallons replaced with 100% acid

Answer Link

Otras preguntas

Pat bought a boat for $37,000 in 2001. In 2006 the boat was worth $27,000. If the boat depreciation is linear, how much will the boat be worth in 2009? A) $27,

One side of a kite is 6 cm less than 4 times the length of another. The perimeter of the kite is 68 cm. Find the length of each side of the kite.

Draw 10 coins to show an amount between 50cent and $1.00

what is a bodegon what is its significance

A sentence with the words drawbacks and counterpoint?

Who was the politician who introduced the term “Iron Curtain”?

overproduction and underconsumption factored into causing the Great Depression by

Which is an example of hypothetical evidence? A: Most politicians hire professional speech writers to prepare what they say. B: In his latest speech, Mayor John

What adds the element Carbon to the environment?

What number has the same value as 50 tens?