A department store is having a 55% off sale on all sport coats if you have a coupon for an additional 10% off any item how much would a $230 sport coat cost

$93.15 will be the cost of the sport coat.

Step-by-step explanation:

Given that

Price of a sport coat = $230

Sale on all sport coats = 55%

So, discount sport coat as per sale:

So, discounted price offered to the customer = $230 - $126.5 = $103.5

It is given that the customer has an coupon of additional discount of 10% off:

So, he will have an additional discount of :

$103.5 10

So, final cost for the customer of the product with price $230:

$103.5 - $10.35 = $93.15

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)