$5
Step-by-step explanation:
Note. There are no options to select.
Let the notebook cost x, then Mark spent:
25x + 25*1.25 = 156.25
25x + 31.25 = 156.25
25x = 156.25 - 31.25
25x = 125
x= 125/25
x= 5
Answer:
85000
Step-by-step explanation:
7908000 - 7848000 = 60000
The first 10000 litres is #1 per litre or 10000
The remaining 5 litres is 50000 * 1.5 = 75000
Step-by-step explanation:
<em>Solving part D only</em>
<em>See the attached for better understanding</em>
The balloon is at ground level, zero on y-coordinate, at 10 seconds and beyond.
There is no chance for the ball to change its y-coordinate at 16 seconds, it will not go up since no more energy to lift it up and it won't go below since zero is the ground level.
Answer:
Simplifying
4x + -7 = -2x + -5
Reorder the terms:
-7 + 4x = -2x + -5
Reorder the terms:
-7 + 4x = -5 + -2x
Solving
-7 + 4x = -5 + -2x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '2x' to each side of the equation.
-7 + 4x + 2x = -5 + -2x + 2x
Combine like terms: 4x + 2x = 6x
-7 + 6x = -5 + -2x + 2x
Combine like terms: -2x + 2x = 0
-7 + 6x = -5 + 0
-7 + 6x = -5
Add '7' to each side of the equation.
-7 + 7 + 6x = -5 + 7
Combine like terms: -7 + 7 = 0
0 + 6x = -5 + 7
6x = -5 + 7
Combine like terms: -5 + 7 = 2
6x = 2
Divide each side by '6'.
x = 0.3333333333
Simplifying
x = 0.3333333333
Step-by-step explanation: