When driving to grandma's house, i drive on the highway for 5 hours at 50 mph, then through a large city for 2 hours at 20 mph, then on a county road for 5 hours at 35 mph. what is my mean speed for the entire trip? round your answer to one decimal place.

0.035

Step-by-step explanation:

i got this because i added it all up and then rounded it up and i got my anwser im sorry if i got it wrong

infinitely many solutions

step-by-step explanation:

we have been given the equation;

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

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

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

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions