opposite means the sign changes (from positive to negative or vice versa)
since a rational number includes both positives and negatives, then the opposite of a rational is also a rational.
For example: is a rational number. Its opposite is , which is also a rational number.
Hope this helped!
Answer: YES
Step-by-step explanation:
let the width be x
then length is 3x+8
now
we have
p= 2(l+b)
or, 352=2(3x+8+x)
or, 352/2=4x+8
or, 176=4x+8
or, 176-8=4x
or, 168=4x
or, x=168/4
therefore x=42
width =42 yards
length =3x+8=3*42+8=134yards
HOPE IT HELPS
Answer:
-9+2x
Step-by-step explanation:
she can buy b and e because they are less than 50 dollars
The answer is x = 3, y = -2 or (3, -2).
We are given that :
- <u>2x + 5y = -4</u>
- <u>y = x - 5</u>
Let us substitute the 2nd equation's value of y in the 1st equation.
- 2x + 5(x - 5) = -4
- 2x + 5x - 25 = -4
- 7x = 21
- x = 3
Now, substitute for x in the 2nd equation.