Answer:
perimeter of rectangle = 2(l+b)
= 2 (9+5)
= 2 X 14
= 28 cm
is the perimeter of rectangle
Answer:
$104
Step-by-step explanation:
If the cost in the store is x we can write:
75%x = 78
0.75x = 78
x = 78 / 0.75 = 104
We let y equal to the elevation above sea level so that the elevation of the rock climber after x minutes of climbing would be:
y = 2x + 50
His initial height can be calculated when x is equal to zero it is when the climber is not yet climbing. Therefore, the rock climber'sinitial height above sea level would be 50 meters.
Answer:
9x−c
= 9x + − c
=−c+9x
Step-by-step explanation:
You didn't attach anything, but this is how you should solve this equation: given an equation 
the solutions are
In your case, the values are 
. If you plug these values inside the solving formula, you have
So, the two solutions are 1 and 7
