Answer:
Step-by-step explanation:
−
1.5
f
−
19
length = 8 yd and width = 2 yd
So, Option D is correct.
Step-by-step explanation:
Area of rectangular playground = 16 square yards
Width of playground = w
Length of playground = l = 4w
We need to find length(l) and width(w)
The formula used is:

Putting values:

Since width of rectangle is always positive, so we will take w = 2
So. Width = 2
Length = 4w = 4(2) = 8
Hence, length = 8 yd and width = 2 yd
So, Option D is correct.
Keywords: Area of rectangle
Learn more about Area of rectangle at:
#learnwithBrainly
Answer:
D.) $12n + $8u = 112 ;u = 4 + n
Step-by-step explanation:
Given that :
Cost per new books (n) = $12
Cost per used book (u) = $8
Total revenue earned = $112
store sold 4 more used books than new books
Hence,
Total revenue should be :
Revenue from new books + Revenue from used book = total revenue
Revenue from new books = $12 * n = $12n
Revenue from used books = $8 * n = $8n
$12n + $8u = 112
Number of books sold :
Number of used books sold = 4 + number of new books sold
u = 4 + n
The equation is y= -2.
How? If you recall, a linear equation is y= mx+b. The m is the slope (growth) and b is the y-intercept ( where the line crosses the y-axis).
Now since there is no slope or m, the equation would look like this:
y= b or y= 0+b
Next, you want to input the coordinator points (0, -2) into the equation. reminder: (x, y) = x=0 y= -2
y= 0+ -2
y= -2
And there you go! The equation is y= -2. I hope I help you in solving this problem, if not message me, because I'll be glad to help you.