Answer:
Step-by-step explanation:
Given: Number of pieces used to make a box = 8
x denotes total number of pieces of wood with Ray
y denotes number of boxes
To find: an equation to describe how many boxes, y, he can make with x pieces of wood.
Solution:
Total number of pieces of wood with Ray = x
As Ray uses 8 pieces of wood for each box he makes,
Number of boxes made by Ray = 
Also, number of boxes made by Ray = y
So,
Answer:
tyrr
Step-by-step explanation:
g
Answer:
Step-by-step explanation:
Let the other side of the rectangle be y. The perimeter of the rectangle is expressed as P = 2(x+y)
Given P = 30ft, on substituting P = 30 into the expression;
30 = 2(x+y)
x+y = 15
y = 15-x
Also since the area of the rectangle is xy;
A = xy
Substitute y = 15-x into the area;
A = x(15-x)
A = 15x-x²
The function that models its area A in terms of the length x of one of its sides is A = 15x-x²
The side of length x yields the greatest area when dA/dx = 0
dA/dx = 15-2x
15-2x = 0
-2x = -15
x = -15/-2
x = 7.5 ft
Hence the side length, x that yields the greatest area is 7.5ft.
Since y = 15-x
y = 15-7.5
y = 7.5
Area of the rectangle = 7.5*7.5
Area of the rectangle = 56.25ft²
Answer: 132 m/s
Step-by-step explanation:
Also known as "fast"
Answer:
y= -6
Step-by-step explanation:
<u>-4y - 20 + 19 = -y + 17</u> *add y on the right to get rid of -y
+y +y then add it to -4y
<u>-3y - 20 + 19 = 17</u> *add 20 to the left to get rid of -20
+20 +20 then add it to 17
<u>-3y + 19 = 37</u> *subtract 19 from the left to get rid of 19
-19 -19 then subtrcat 19 from 37 as well
<u>-3y</u> = <u>18</u> *now we want to divide both sides by -3 to
-3 -3 get y by it's self
y = -6 *no we're left with y = -6 :D
- im sorry if this doesn't make sense x(
