Solve the system. Select the solution(s)
Y=x^2-1
-y=2x^2+1

If a boat travels 3 miles in 1.5 hours how far will it travel in 1 hour

Sherina wrote and solved the equation. x-56=230 x-56-56=230-56 x=174 what was sherina’s error? sherina’s work is correct. sherina only needed to subtract 56 from 230. sherina made a subtraction error when subtracting 56 from 230. sherina should have added 56 to both sides of the equation.

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles