First divide 4687 by 13 and then multiply the answer by 0.78. The answer would be:
4687÷13= 360.5384615
360.5 × 0.78 = $281.22
Answer:
x = 11/2
Step-by-step explanation:
solve : 2x-6 = 5
2x-6+6= 5+6 add 6
2x = 11 divid by 11
x = 11/2
For this case we have the following line:
x = 4
The first thing you should know is that the slope of the line is given by:
m = (y2-y1) / (x2-x1)
In this case:
x2 = x1
Thus,
The slope is:
m = (y2-y1) / (0)
m = infinity
Answer:
The slope of the line is:
m = infinity
Answer:

where R is the R-value and t is the thickness in inches.
Step-by-step explanation:
We are given the following in the question:
The R-value of fiberglass insulation and f its thickness have a linear relation.
Let R be the R-value and t be the thickness. Then, the equation can be written as:

where a and b are constants.
When t = 3.5, R = 11

When t = 6, R = 19

Solving the two equation, using the elimination method, we have,

Thus, the linear relationship is given by:

where R is the R-value and t is the thickness in inches.
Answer:
60 cm²
Step-by-step explanation:
The side of the square is 8 cm, so the perimeter is:
P = 4s
P = 4 (8 cm)
P = 32 cm
The perimeter of the rectangle is:
P = 2w + 2h
32 cm = 2 (10 cm) + 2h
32 cm = 20 cm + 2h
12 cm = 2h
h = 6 cm
So the area of the rectangle is:
A = wh
A = (10 cm) (6 cm)
A = 60 cm²