Answer:
<u>4.5 = x</u>
Step-by-step explanation:
Given:
22.5 = 5x
(we need to find out what x is)
22.5 / 5 = 4.5
meaning that the duck traveled at 4.5 kilometers per hour.
Check<u>:</u>4.5 x 5 = 22.5
4x+3x+2x=180
9x=180
x=20
A
expression: x^3-2
If the number is 5: 123