Desmond is rolling a standard six-sided number cube. He plans to roll it 72 times. About how many times would you expect Desmond to roll a 4? Why? b. About how many times would you expect him to roll an even number? Why?
c. Desmond kept track of his results for all 72 rolls. The table at right shows some of his results. Based on
his partial results, how many times did he roll a 5 or a 6?

c

Step-by-step explanation:

2

step-by-2step explanation:

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