Answered

From simple queries to complex problems, IDNLearn.com provides reliable answers. Find the answers you need quickly and accurately with help from our knowledgeable and experienced experts.

a chemical comapany makes two brands of antifreeze . the first brand is 70% pure antifreeze and the second is 95% pure antifreeze. In order to obtain 30 gallons of a mixture that contains 80% pure antifreeze how many gallons of each brand pf antifreeze must be uses

Sagot :

Answer:hello mate

Step-by-step expla

12 gallons of 95% of antifreeze and 18 gallon of 70% of antifreeze for the mixture

What is Percentage?

In mathematics, a percentage is a number or ratio expressed as a fraction of 100.

What is Linear equation?

An equation between two variables that gives a straight line when plotted on a graph.

Given,

Quantity of pure antifreeze in first brand = 70%

Quantity of pure antifreeze in second brand = 95%

Consider,

x is the gallons in 95% pure antifreeze in the mixture

(30-x) is the gallon in 70% pure antifreeze in the mixture

We need to obtain 30 gallons of a mixture that contains 80% pure antifreeze.

Then the equation will become

0.95x + 0.70(30-x) = 0.8 × 30

0.95x-0.70x+21 =24

0.25x = 3

x = 12 gallons

There fore we need 12 gallons of 95% of antifreeze and 30-12 =18 gallon of 70% of antifreeze for the mixture.

Hence, 12 gallons of 95% of antifreeze and 18 gallon of 70% of antifreeze for the mixture

Learn more about Percentage and Linear equation here

https://brainly.com/question/22432227

#SPJ2

We appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. Accurate answers are just a click away at IDNLearn.com. Thanks for stopping by, and come back for more reliable solutions.