Jake runs 76–√

miles on Monday and 56–√
miles on Tuesday. What is the difference in miles run each day?(1 point)
Responses

46–√
4 start root 6 end root

26–√
2 start root 6 end root

412−−√
4 start root 12 end root

212−−√

1 answer

To find the difference in the miles run by Jake each day, we can calculate the difference between the distances he ran on Monday and Tuesday.

Jake ran \(76 - \sqrt{76}\) miles on Monday and \(56 - \sqrt{56}\) miles on Tuesday. The difference can be calculated as follows:

\[ \text{Difference} = (76 - \sqrt{76}) - (56 - \sqrt{56}) \]

This simplifies to:

\[ \text{Difference} = 76 - \sqrt{76} - 56 + \sqrt{56} \]

Combine like terms:

\[ \text{Difference} = (76 - 56) + (-\sqrt{76} + \sqrt{56}) \] \[ \text{Difference} = 20 + (\sqrt{56} - \sqrt{76}) \]

Now we can simplify \(\sqrt{56}\) and \(\sqrt{76}\):

  • \(\sqrt{76} = \sqrt{4 \times 19} = 2\sqrt{19}\)
  • \(\sqrt{56} = \sqrt{4 \times 14} = 2\sqrt{14}\)

Substituting back into the difference gives:

\[ \text{Difference} = 20 + (2\sqrt{14} - 2\sqrt{19}) \]

If we also factor out the 2:

\[ \text{Difference} = 20 + 2(\sqrt{14} - \sqrt{19}) \]

It's not clear from the choices provided, but following that simplification:

The key point to remember is:

  1. \(\sqrt{76} - \sqrt{56}\) gives the distance difference involving square roots.
  2. The numerical part \(20\) is from the direct subtraction.

However, if no further simplification is possible through matching terms with the choices, the difference calculation initially leads us here for clarification.

Make sure to carefully check the options with respect to numerical comparison or simplification measures outlined here in view of square root expressions to finalize the choice.

Let me know if you want a specific approach taken towards matching options accordingly!