Fabio has run 5/8 of the race what fraction of the race remains?

3/8

Step-by-step explanation:

The total race is equal to 1.  Rewriting this as 8/8.  We subtract the part of the race that as already been run from the total and that is the part that remains

8/8 - 5/8 = 3/8

3/8 remains

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