Answer:
2x - 6
Step-by-step explanation:
In this question, you have to simplify the expression.
Solve:
(3х - 5) - (5х + 1)
Distribute the negative sign the variables inside the parenthesis.
3x - 5 - 5x - 1
Combine like terms.
3x - 5 - 5x - 1
-2x - 5 - 1
-2x - 6
Your final answer would be -2x - 6
Answer:
Each apple costs $1.20 and each orange costs $1.
Step-by-step explanation:
Let x represent the number of apples and y represent the number of oranges.
For the fruit you bought, 5 apples and 4 oranges, we have 5x+4y. This costs $10. This gives us the equation
5x+4y = 10
For the fruit your friend bought, 5 apples and 5 oranges, we have 5x+5y. This costs $11. This gives us the equation
5x+5y = 11
Together we have the system
We will eliminate x by subtracting the bottom equation from the top:
Divide both sides by -1:
-1y/-1 = -1/-1
y = 1
Each orange costs $1.
Substitute this into the first equation:
5x+4(1) = 10
5x+4 = 10
Subtract 4 from each side:
5x+4-4 = 10-4
5x = 6
Divide both sides by 5:
5x/5 = 6/5
x = 1.2
Each apple costs $1.20.
Answer:
Step-by-step explanation:
Only D has a chance of being correct. 7x means you multiply 7 and whatever x is together.
A and B look like they are added.
C looks like some sort of subtraction has taken place.
D: - 1 * 7 = - 7
4*7 = 28
5*7 = 35
Answer:
2580 feet
Step-by-step explanation:
The question is essentially asking for the perimeter.
Considering the lot is a parallelogram at the least, it would be (750+540)*2, or 1290*2, or 2580