Answer:

Step-by-step explanation:
We are given the following information in the question:

This can be written as:

The auxiliary equation obtained is:

Thus, the general solution of the equation is:

Answer: Length = 40 inches
Width = 20 inches
Step-by-step explanation:
Let the width of the package be represented by x.
Since the length of the package must be twice its width, therefore the length will be: = 2 × x = 2x
Since the sum of the dimensions equals 60 inches. This will then be:
x + 2x = 60.
3x = 60
x = 60/3
x = 20
Therefore, the width = 20 inches
Length = 2x = 2 × 20 = 40 inches
The dimensions should be 40 by 20 inches.
Answer:
y=-9
Step-by-step explanation:
If x equals 2, then we can substitute that into the equation, resulting in the equation 2*2-2y=22
We can solve for multiplication first:
4-2y=22
Then we can subtract four on both sides, canceling out the four on the left side:
-2y=18
Now to isolate y, we divide both sides by -2, resulting in the solution:
y=-9
Hope this helps!
Hello,
Converting 90 in to yd, we have:
90in * 1ft/12in * 1yd/3ft = 2.5 yd
Next,
Since A of a rectangle is b*h,
A = 2.5yd * 3yd = 7.5 yd ^2.
Good luck to you!