When you put 31/6 to 5 1/6 and 8 2/9 to 8 2/9 and 11/2 to 5 1/2. Then you change the denominators to 18, so you get 5 3/18 + 8 4/18 - 5 9/18. So you add the 5 3/18 and 8 4/18 to get 13 7/18. Then you subtract 13 7/18 by 5 9/18 to get 7 8/18. simplest form you will get 7 4/9. Your welcome.
Answer:
5.5, 9.5
Step-by-step explanation:
Let x and y be the numbers
x+y = 15
x-y = 4
Add the two equations together to eliminate y
x+y = 15
x-y = 4
------------------
2x = 19
Divide by 2
2x/2 =19/2
x = 9.5
Now find y
x+y = 15
9.5+y = 15
Subtract 9.5
x = 15-9.5
x =5.5
STEP 1:
find the length of the sides of the square
AREA FORMULA (for a square)
x= side
A=x^2
225=x^2
take square root of both sides
15 feet= x
STEP 2:
find perimeter
PERIMETER FORMULA (for a square)
x= side of square
P= 4x
use x value from step 1
P= 4(15 ft)
P= 60 feet
ANSWER: The perimeter is 60 feet.
Hope this helps! :)
Answer:
12.76
Step-by-step explanation:
This is much easier to solve if you draw it out on a graph. The perimeter is the sum of all the sides. I used the Pythagorean theorem to find the hypotenuse.
We have to find the equation for three times a number is three more than twice the number.
Let the number is x.
Three times a number = 3x
Three more than twice the number. = 3+2x
These two equations should be equal.
Hence, we have
Therefore, the equation 3x = 3 + 2x can be used to find the unknown x.
A is the correct option.
