A triangular pyramid has 4 triangular faces. If all 4 have the same area, then one of them has area 1/4 of the surface area, 1836. That gives 459 sq ft as the area of one of the triangular faces.
The price of less expensive equipment is $1575.
Step-by-step explanation:
Let,
Price of one equipment = x
Price of other equipment = y
According to given statement;
x+y=4000 Eqn 1
x = y+850 Eqn 2
Putting Eqn 2 in Eqn 1

Dividing both sides by 2;

Putting y=1575 in Eqn 2;

The price of less expensive equipment is $1575.
Keywords: linear equation, substitution method
Learn more about linear equations at:
#LearnwithBrainly
Answer:3.42
Step-by-step explanation:to get the answer to a area equation you need to multiply the length by the width.
Answer:
2
Step-by-step explanation:
The equation for a line is:
y=mx+b
Where m is the slope, b is the y-intercept, and x and y are the x and y coordinates.
The equation given to us is:
y=2x+3
Therefore 2 is the slope
For this case we can solve the problem by means of the following rule of three:
100 $ --------------> 100%
x -------------------> 250%
From here, we clear the value of x.
We have then:
Rewriting we have:

Answer:
The price of a four star dinner today is $ 250.