38.Randy and Amy left school at the same time and began walking in oppo- site directions. Randy walked at a rate of 3.6 km/h and Amy walked at a rate of 4.2 km/h. How far apart were they after 10 min? PLS HELP I ALSO NEED THE WORK!!

0.1 km apart

Step-by-step explanation:

10 mins is 10/60 of an hour

For Randy: 3.6 * 10/60 = 0.6

For Amy: 4.2 * 10/60 = 0.7

0.7 - 0.6 = 0.1

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