The new parking lot must hold twice as many cars as the previous parking lot. The previous parking lot could hold 56 cars. So this means the new parking lot must hold 2 x 56 = 112 cars
Let y represent the number of cars in each row, and x be the number of total rows in the parking lot. Since the number of cars in each row must be 6 less than the number of rows, we can write the equation as:
y = x - 6 (1)
The product of cars in each row and the number of rows will give the total number of cars. So we can write the equation as:
xy = 112 (2)
Using the above two equations, the civil engineer can find the number of rows he should include in the new parking lot.
Using the value of y from equation 1 to 2, we get:
x(x - 6) = 112 (3)
This equation is only in terms of x, i.e. the number of rows and can be directly solved to find the number of rows that must in new parking lot.
Answer: 70.00$
Step-by-step explanation:
The question states that it takes 20 gallons of gas to get there, and the cost of three gallons of gasoline is $10.50.
so
20/3 * 10.50=70$
Answer:
Step-by-step explanation:
When we divide congruent sides of similar solids or plane figures we get the linear scale factor.
The square of the linear scale factor gives the area scale factor while it's cube gives the volume scale factor.
In this question, the linear scale factor will be 6/5
since we are asked to find the volume we cube the linear scale factor.
(6/5)³=216/125
to get the volume of the larger prism we multiply the volume of the smaller by the V.S.L as shown
(216/125)×300in³= 518.4in³
Answer:
Step-by-step explanation:
Given that A is a square matrix and A is idempotent
Consider I-A
i) 
It follows that I-A is also idempotent
ii) Consider the matrix 2A-I
So it follows that 2A-I matrix is its own inverse.
