Answer:

Step-by-step explanation:
We want to find the rational number which is equal to
.
Let
....eqn(1)
Multiply both sides by 10
.....eqn (2)
Subtract eqn (1) from eqn (2)


Divide both sides by 9.

Are you trying to make an algebraic equation?
x = # of trees
y = gal of water
It would be 30x = y
Answer:
x+x+30 is the required expression.
Step-by-step explanation:
You watch x minutes of television on Monday
An since, the same amount on Wednesday that means x minutes on Wednesday
And 30 minutes on Friday
Since, we have to tell the expression that represents the total amount in the given situation that means
x+x+30 is the required expression.
Answer:
x^2+8x+15
Step-by-step explanation:
You can use FOIL method
(x*x)+(x*5)+(3*x)+(3*5)
x^2+5x+3x+15
x^2+8x+15
Answer:
x>15
Step-by-step explanation:
Given the inequality: 2x + 10 < 4x - 20
Collect like terms
2x-4x<-20-10
-2x<-30
x > -30/-2
x>15
Hence the solution is x>15