Answer:
23.9
Step-by-step explanation:
His route from school to Rhianna's house to his house forms a triangle in which the sides are 7 miles and the hypotenuse is unknown. Solving using the Pythagorean theorem, we find the route from Rhianna's house back home is 7^2+7^2=x^2.
Rounding to the nearest tenth, we now know this route is 9.9 miles. Adding the total distances from each location, we get an answer of 7 + 7 + 9.9 = 23.9.
Answer: 62
Hope this helps : )
-20 + y = 2
y = 22
20 + 3y = 6
y = 14/3
Answer: 35.8 seconds
Step By Step:
13.6
+12.2
———
35.8
