which of these story problems describes the sum 19 + (-12)? check all that apply. show your work to justify your answer.
1
2. is the right answer
3
You need to solve the following equation:
-0.5x^2 +36x -161 = 451
Set right side to 0
-0.5x^2 +36x -612 = 0
Multiply by -2 to get rid of decimal and leading neg coefficient.
x^2 -72x + 1224 = 0
Use quadratic formula:
a = 1, b = -72, c = 1224

Therefore the min price to have 451 profit is $27.51
Answer:
17/6 miles or 2 5/6 miles
Step-by-step explanation:
The train is 17/2 miles
She ran 1/3 of the way
Multiply 1/3*17/2
1/3*17/2 = 17/6
We can change this to a mixed number
17/6 miles =2 5/6 miles
Answer:
2
Step-by-step explanation:
2.is best possible answer as it.says below 1000...