Answer:
Step-by-step explanation:
Given :
Multiply numerator and denominator by 2 :
[Divide both sides by 5 as it is a common factor]
The trapezoid has two parallel sides
21 divide by 4 is 5.25. She travels 5.25 miles per hour. 42 divide by 5.25 is 8. It would take 8 hours for Shelly to bike 42 miles.
2.25t+ 5= 13.5t+ 14
⇒ 5- 14= 13.5t- 2.25t
⇒ -9= 11.25t
⇒ -9/11.25= t
⇒ -0.8= t
Final answer: t= -0.8~