ASAP WILL MARK BRAINLIEST!!!!!!!
2 answers:
Answer:14
Step-by-step explanation:
Answer:
Step-by-step explanation:
We are mixing two acids.
x = liters of 20% acid solution
y = liters of 70% acid solution
x + y = 8 This represents the total number of liters
and
.2x + .7y = .5(8) This represents the concentration of the solutions
Since x+y=8, y = 8-x
We can use substitution.
.2x + .7(8-x) = 4
.2x + 5.6 - .7x = 4
Combining like terms
-0.5x = - 1.6
Dividing by -0.5
x = 3.2
There are 3.2 liters of the 20% solution to be mixed with 4.8 liters of the 70% solution.
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The error is 1.0 mile, too large.
Write the ratio
1.0 mile
--------------- = 0.069
14.5 miles
Mark's estimate is 6.9% greater than the actual distance.
-4.5 is your answer, hope this helped
8+3 = 11.
4/2 = 1 and 1/2
Hopefully this is the stuff your looking for
Answer:
y + 3 ≥ 26
Step-by-step explanation:
