Question

For every five runs that Dave scored, his sister, Lisa, scored two less runs. How many runs did Dave score if Lisa scored a total of 12 runs?​

Answer 1

2.4 runs

Explanation:

We can start out by writing out the equation word by word:

Dave: y = 5x

Lisa: y = 5x - 2

Now, we just plug in all the values:

Dave: 12 = 5x

Lisa: 12 = 5x -2

Simplify:

Dave: x = 2.4 runs

Lisa: x = 2.8 runs

Thus, if Lisa scored a total of 12 runs, Dave scored 2.4 runs.