Write an algebraic equation and use it to solve the problem.How much pure acid should be mixed with 9 gallons of a 50% acid solution in order to get an 80% acid solution?
A. 13.5 gal
B. 22.5 gal
C. 4.5 gal
D. 36 gal
Answer: A
Mathematics
You might also like to view...
If m
= 67°, b = 17.4 cm, and c = 12.5 cm, find the area of 
correct to the nearest square centimeter.
What will be an ideal response?
Mathematics
Solve the linear equation using the addition property of equality.-5y - 1 = 12 - 6y
A. y = -13 B. y = 13 C. y = 11 D. y = -11
Mathematics
Evaluate the expression, given x = -2, y = 3, and a = -4.
A. 0
B. - 
C. Undefined
D. 
Mathematics
Approximate the square root. Round to the nearest tenth, if needed.
A. 9.8 B. 10 C. 10.9 D. 9.9
Mathematics