Pauletta detweiler is paid a salary of $325 a week plus 2 3/4% commission on weekly sales over $6500. her sales last week totaled $17400. what were her total earning for the week ?

$ 624.75

Step-by-step explanation:

Given

Her base salary = $325,

Also, commission for sales over $6500 =

Let x be the sale ( in dollars )

Then her commission = of (x-6500),

So, her earning = base salary + commission

According to the question,

x = 17400

Hence, her earning =

= $ 624.75

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15