About 25 gallons of 20% mixture are needed to make the 80% mixture.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Let x represent the amount of gallons of 20% mixture needed, hence:
(20% of x) + (80% of y) = 65% of 100
0.2x + 0.8y = 65 (1)
Also:
x + y = 100 (2)
From both equations:
x = 25, y = 75
About 25 gallons of 20% mixture are needed to make the 80% mixture.
Find out more on equation at: brainly.com/question/2972832
Answer:
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Step-by-step explanation:
Answer: 1.35
Step-by-step explanation:
if:
6 oranges cost............................0.90 dollars
9 oranges will cost....................................?
(9*0.90)/6=1.35 dollars
Answer:
4:3,12:9, and 16:12
Step-by-step explanation:
Answer:0.2
Step-by-step explanation: 1/10 and 1/10
Simply means this in maths
1/10+1/10
0.1+0.1= 0.2