4. (8 pts) The following is based on a true story. A runner runs a full marathon (26.2 miles). She runs the first 10 miles at a 6mi/hr pace. Then an old injury flares up and she runs the rest of the race at a 4.7mi/hr
pace. How long did it take her to complete the race? State you answer in hours rounded to one decimal
place. Clearly define your variables, state formulas used, show all work, including tables used. net
molto
molto solo

hi, i am not sure about this one but i think its d,

hope this !

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are