B.
X=5
7(5+9)=7•x+7•9
(7•5)+(7•9)=7x+63
35+63=7x+63
Subtract 63 from both sides and you will be left with
35=7x
Divide each side by 7 (you pretty much just divide 35 by 7)
And x=5
Alright, lets get started.
Suppose women had to pay x $ at regular price.
As we know, the sale is 1/4 off.
It means she saves x * 1/4 = x/4
So, women need to pay = regular price - what she saves
women need to pay = x - x/4 = 3 x / 4 that is equal to 42 (given in question)
3x / 4 = 42
Multiplying 4 in both sides.
3x / 4 * 4 = 42 * 4
3 x = 168
Dividing 3 in both sides
3 x / 3 = 168/ 3
x = 56
she have had to pay 56 $ at the regular price : Answer
Hope it will help :)
First let’s take this out of scientific notation 320000 products are packaged. Divide that by 900(amount of employees) and you get 355.55555 repeating. In scientific notation you’d move the decimal two to the left to make it 3.5 X 10^2
