Answer: 3rd one
Rearrange the original equation so it fits the model of : ax^2+bx+c=0
Then use the quadratic formula to find all possible answers.
1. It's a proportion...50 over 12.5 = h over 50 then cross multiply and divide
2. Another proportion 7over x = 2 over 6 then cross multiply and divide
Answer:
-7/40
Step-by-step explanation:
5/8 - 4/5
~Find common denominators
25/40 - 32/40
~Subtract
-7/40
Best of Luck!
