Beth had planned to run an average of 6 miles per hour in a race. She had a very good race and actually ran at an average of 7 m
1 answer:
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Answer:
<em>Answer is </em><em>given below with explanations</em><em>. </em>
Step-by-step explanation:
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Last option is the correct answer.
Step-by-step explanation:
Given that
Let x stand for the solution a and y stand for the solution B
So,
According to statement that
30 gallons have to be made
Solution A contains 29 percent bromine => 0.29x
Solution B contains 53 percent =>0.53y
And the mixture of 30 gallons contains 45% bromine
Following equations will be used for solving the problem
Hence,
Last option is the correct answer.
Keywords: Equations, Variables
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Answer:
The equation for this is:
Step-by-step explanation:
We have that the number though is n.
Adds 10:
This means that now we have:
Multiplies by 3:
This means that now we have:
Gets 42:
This means that: