Noah solved an equation as shown below and found that the equation has infinitely many solutions.–3(x+4)+2x=2(x – 6)– 3x–3x– 12+
2x= 2x– 12– 3x–x – 12= –x – 12Which explains whether Noah is correct? a. Noah is correct because the two sides of the equation are equivalent expressions.
b. Noah is correct because if he continues the solution, the final solution will be x = –2C) Noah is not correct because the equivalent expressions mean that there is no solution.
d. Noah is not correct because he used the distributive property incorrectly.
ok, so we already know how long she walked in 1/2 hour and we need to find out how many miles in one full hour. So, i multiplied 1 1/4 times two to make up the one full hour and I got 2.5 miles. So the rate is 2.5 mph.