The mistake is the step 2. You need to divide both sides by 9, not multiply both sides by 9
You add 3.5 and 2.25 because that is the fabric your needing and you subtract them from 6.5 and get: 6.5 - 5.75 = .75 yards of fabric left over
Answer:
y = -x + 4
Step-by-step explanation:
I got it right hope this helps :)
Y= # of pencils
z= # of pens
1y + 1.50z = 7
Total # of pencils and pens combined equals 6
4 pencils = $4
2 pens = $3
$4 + $3 = $7
4 pencils + 2 pens = 6 items total
Quadratic equation: ax² + bx + c =0
x' = [-b+√(b²-4ac)]/2a and x" = [-b-√(b²-4ac)]/2a
6 = x² – 10x ; x² - 10x -6 =0
(a=1, b= - 10 and c = - 6
x' = [10+√(10²+4(1)(-6)]/2(1) and x" = [10-√(10²+4(1)(-6)]/2(1)
x' =5+√31 and x' = 5-√31