Solve 1/3 over 5 = a over 20 A. a = 3/5 B. a = 3/4 C. a = 4/3 D. a = 5/3
2 answers:
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The answer is C and D
First we must make one side of the equation zero, so we subtract 7 on both sides of the equation, making the equation 9x^2 - 6x - 6 = 0
Then we will use the quadratic formula to find the answers.
using the Quadratic Formula where:
a = 9, b = -6, and c = -6
and the formula is 6 +-