First, we'll need to find the definition for "unit cost" and "unit rate"
What is a unit rate?
Rates are usually expressed as a quantity of 1 such as 2 feet per second or 5 miles per hour
The words: miles per hour or feet per hour is a unit rate.
What is a unit cost?
Unit costs are used as a measure of a company's cost to build one unit of a product. This includes fixed costs and variable costs.
In conclusion.
Unit rates and unit costs are almost the same thing. But, they're sometimes used in different ways.
The height to width ratio of the Indian Flag is 2:3.
So, for every 2 (inches, meters, whatever) of height
there should be 3 of width.
Indian flag Sentence Examples:
1. If we made the flag 20 inches high, it should be 30 inches wide.
2. If we made the flag 40 cm high, it should be 60 cm wide (which is still in the ratio 2:3).
I hope this helps.
Answer:
x=2
Step-by-step explanation:
on the LHS multiply the 6 by the values in the brackets and add by 2x= 9-(x+6) RHS
for the RHS multiply the - by (x+6) which will be 9-x-6
therefore you'll put in your like terms towards the end it'll be 6x-12=0 then take it to the other side and divide by 6 which will give you 2
Answer:
Step-by-step explanation:
Question 1
System of equations is,
y = -6x -------(1)
y = -4x - 2 ---------(2)
Substitute the value of y from equation (1) to equation (2)
-6x = -4x - 2
-6x + 4x = -2
-2x = -2
x = 1
From equation (1)
y = -6(1)
y = -6
Question (2)
System of equations is,
-y = x --------(1)
3x + 5y = 20 ---------(2)
Substitute the value of x from equation (1) to equation (2)
3(-y) + 5y = 20
-3y + 5y = 20
2y = 20
y = 10
From equation (1)
-y = x
x = -10
Question (3)
System of the equations is,
y = -2x - 7 --------(1)
9x - 10y = 12 ----------(2)
Substitute the value of y from equation (1) to equation (2)
9x - 10(-2x - 7) = 12
9x + 20x + 70 = 12
29x = 12 - 70
29x = -58
x = -2
From equation (1)
y = -2(-2) - 7
y = 4 - 7
y = -3
Answer:
z=kx/y
zy=kx
zy/x=kx/x ( divided both side by x. to find k)
k=zy/x
k=6×4/3(z=6,y=4,x=3)
k=24/3
k=8
so z=kx/y
z=8×5/2(replace the numbers in the place of variables,k=8,x=5,y=2)
z=40/2
z=20
