Solve the problem.A 100-liter mixture of chlorine and water is 4% chlorine. (i) Write a rational expression in x whose values give the percentage (in decimal form) of the mixture that is chlorine when x gallons of water are added to the mixture. (ii) Find the percentage of chlorine in the mixture if 70 gallons of water are added to it. Round to the nearest percent, if necessary.
A. (i) 
;
(ii) 149%
B. (i) 
;
(ii) 2%
C. (i) 
;
(ii) 4%
D. (i) 
;
(ii) 6%
Answer: B
Mathematics
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Perform the operation.Multiply 639 by 125
A. 79,865 B. 79,885 C. 79,875 D. 79,975
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Provide an appropriate response.38% = ? (fraction)
A. 
B. 
C. 
D. 
E. none of the above
Mathematics
Multiply.-1000 × (-706.941700)
A. -7069.417 B. 706,941.7 C. -7,069,417 D. 70,694.17
Mathematics
Solve the equation using the quadratic formula (when necessary, round results to three significant digits).
A. -1.23, 1.90 B. -1.10, 1.83 C. -1.10, 1.90 D. -1.23 , 1.83 E. -1.23
Mathematics