Tyree planned to build a ramp from his window to the sidewalk so he could skateboard right out his window on his way to school. His window is 5 feet
off the ground and the sidewalk is 20 feet from his house. How long will
Tyree's ramp need to be to make it from his window to the sidewalk?

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3