Answer:
get 1 … what? free? half-price? something else?
Let x= price of 1 item
Then 3x= price of 3 items
Buy 2 , get 1 free
Total cost =2x
Discount =3x−2x=x
Discount percentage =x/(3x)=0.333…=3313%
Buy 2 , get 1 half price
Total cost =2x+0.5x=2.5x
Discount =3x−2.5x=0.5x
Discount percentage =0.5x/(3x)=0.1666…=1623%
Hi!
There might be different variations into how anyone would approach this problem but this is by far an easy way for me.
In order to solve fractional relationships with a variable, a perfect way to solve them would be to cross multiply and make them equal to each other.
You see the part '3y+12', and when you criss cross over to the other side of the equation, you get three. Multiply that together.
When you see the part '6', when you glide diagonally, you find '4y'. Multiply this together as well. Make them equal to each other.
(<em>This is how you do cross multiplication.)</em>
You should get something like this:
3(3y+12)=6(4y) Distribute the three on the left side and multiply. Do the same on the right.
9y+36=24y Now, you can combine like terms by subtracting 9y to the other side.
36=15y Isolate y and divide it by 15.
y=2.4
I was unclear of the answer, so I plugged in 2.4 into the original equation where the y variable was, and got the right answer, so 2.4 should be the correct one no matter how you got it.
I hope this helped!
point B is located in quadrant II (option B)
Explanation:
Point A: (6, 3) = (x, y)
reflection of point A across the y axis:
The x coordinate will be negative and the y coordinate will remain the same
reflection of point A across the y axis = (-6, 3)
Attaching the graph showing the point after reflection:
Since point B is the reflection of point A.
Hence, point B is located in quadrant II (option B)
Answer:
1/25
Step-by-step explanation:
Well, in order to figure this out, we need to figure out how many times 4 goes into 100, because it is 4 out of 100%.
So if you divide 100 by 4 you get 25, which means 4 goes into 100 25 times.
So the fraction would be 1/25 of the number.
Hope this helps :)