Answer:
1) Solution (2,-3)
2) Solution (-1, 
)
3) Solution (
)
Step-by-step explanation:
We need to solve equations using elimination
1) 
Let:
Adding both equations:
We get value of x = 2
Now, put value of x into equation 1 to find value of y
So, we get y = -3
Solution (2,-3)
2) 
Let:
Adding both equations
We get: y= -3/2
Now find value of x by putting value of y in eq(1)
We get x = -1
Solution (-1, )
3) 
let:
Add both equations:
We get x = -1/2
Now, put value of x in equation 2
We get y = -5/2
Solution ()
Answer:
1. 54 square feet.
2. 24 square feet.
3. 78 square feet.
Step-by-step explanation:
1. Each side of cube 1 is 3 feet x 3 feet, so each side has an area of 9 square feet. Multiply by 6 sides and the area is 54 square feet.
2. 6s^2 = (6 x 2) x 2
(6 x 2) x 2
12 x 2
= 24
3. Just add the 36 and 24.
56 + 24 = 78
Hope this helps!
Answer:
Step-by-step explanation:
A square root can't be simplified any further if there are no 2 identical factors remaining and every term under the radical symbol is a prime number
Answer:
The length of the subway on the map is 
Step-by-step explanation:
we know that
The scale on the map is equal to the length of the subway on the map divided by the length of the subway in the actual
so
Let
z------> the scale on the map
x------> the length of the subway on the map
y------> the length of the subway in the actual
In this problem we have
substitute and solve for x
You know when you divide and get a remainder. for example 4/3 is 1 1/4
