Answer:
Step-by-step explanation:
<u>Solving quadratic equation:</u>
- 5x² - 8x + 5 = 0
- x = (-b ± √b²-4ac)/2a
- x = (8 ± √8²-4*5*5)/2*5
- x = (8 ± √64-100)/10
- x = (8 ±√-36)/10
- x = (8 ± 6i)/10
- x = (4 ± 3i)/5
x = (r ± si)/t
r = 4, s = 3, t = 5
8 × 51 = 408
Eight times fifty-one equals four hundred eight
This is an equation involving x alone, so the most you can do is solve it:
Answer:
it would be the second opition
Step-by-step explanation:
Amy would have spent $22.5 on her books (assuming you meant $10 total, not $10 per book)