42 x 1.07 = 44.94
44.94 - 2.94 = 42
58 x 1.07 = 62.06$
Answer:
He paid = $20,500
Step-by-step explanation:
Let the amount he bought the car originally be X
so from the statement,
(2/5)*X + $200 = $8,400
(2/5)*X = $8,400 - $200
solving for X
X = $8200 * 5/2
X = $20,500
The length of VX equals to 80
Below I show my work of how I found the missing length.
To find the missing length, you pick the starting location. Then go in any direction and then do the same to the other side. Then write a ratio.
I decided to start at 46 and then go downward.
46/23=x/17
Then you cross multiply
43*17=x*23
782=23x
Divide 23 on both sides
X=34.
Then add 34 by 46 to get the length of VX.
Below is a picture of notes on how to solve these types of problems.
X^2 + 2x - 3 = (x-1)(x+3)
When the ball left the ground, time t=0.
Plugging this into the equation,
h=0.5m.
Hope this helps :)