Yes this answer is correct -2/3
3/8 cannot be simplified into a smaller fraction. 3/8 in decimal form is 0.375.
43.55 dollars
price between 3.99 and 3.01
trial and error method
43.55 divided by a random number between the range of prices (3.99 and 3.01)
43.55 divided by 3.35 is 13
13 pies were sold and each was sold at 3.35 dollars
Slope formula is
![\frac{y2-y1}{x2-x1}](https://tex.z-dn.net/?f=%20%5Cfrac%7By2-y1%7D%7Bx2-x1%7D%20)
![\frac{5-1}{-2-3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B5-1%7D%7B-2-3%7D%20)
![\frac{4}{-5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B-5%7D%20)
So -4/5 is the right answer.
Hope this helps :)
Hi there!
The general formula to find the perimeter of a rectangle is :
P = (Length × 2) + (Width × 2)
Let's say the width of the rectangle is "x".
The lenght of the rectangle is equal to 2x + 4.2
Replace everything you know in the formula :
42.6 = ((2x + 4.2) × 2) + ((x) × 2)
Simplify everything :
2x × 2 = 4x
4.2 × 2 = 8.4
x × 2 = 2x
42.6 = 4x + 8.4 + 2x
42.6 = 6x + 8.4
Isolate "x":
42.6 = 6x + 8.4
Subtract 8.4 from each side of the equation
34.2 = 6x
Divide each side of the equation by 6
5.7 = x
5.7cm = the width of the rectangle
Since the lenght of the rectangle is equal to 2 times the width of the rectangle plus 4.2 :
Length = (2 × 5.7) + 4.2
Length = 15.6cm
42.6 = (2 × 15.6) + (2 × 5.7) ? → YES
There you go! I really hope this helped, if there's anything just let me know! :)