A sporting goods store manager was selling a ski set for a certain price. The manager offered the markdowns shown, making the one-day sale price of the ski set $326. Find the original selling price of the ski set. This is for original and then 10% off then 30% off.

The original selling price is $517.46

Step-by-step explanation:

Let the initial selling price be $q

After marking down 10%,

Final Selling price  = Selling price(1-10%)

Selling price = q – 10% of q = q – 0.1q = 0.9q

After marking 30%

Final Selling price  = Selling price(1-10%)

Selling price = 0.9q – (0.3*0.9q) = 0.9q – 0.27q = 0.63q

Therefore,

0.63q = 326

Therefore, the original selling price is $517.46

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

51-50

step-by-step explanation: