Question

Brandi jogged 2 1\2 miles in 30 minutes. Sharma jogged 3 1\2 miles in 3\4 hour. who jogged at slower rate

Answer 1

Answer:

The speed of Sharma is slower than the speed of Brandi

I.e ∵   4.67 miles per hour   5 miles per hour

      ∴  $S_2$ $S_1$

Step-by-step explanation:

Given as :

The distance cover by Brandi = $D_1$ = 2 $\frac{1}{2}$ =$\frac{5}{2}$

The Time taken by Brandi for jogging =  $T_1$ = 30 minutes =$\frac{1}{2}$ hour

Let the speed of Brandi = $S_1$ = $\dfrac{\textrm Distance }{\textrm Time}$

or,  $S_1$ = $\dfrac{\textrm [tex]D_1$  }{\textrm   $T_1$ }[/tex]

Or.  $S_1$ = $\frac{\frac{5}{2}}{\frac{1}{2}}$

∴   $S_1$ = 5 miles per hour

Again

The distance cover by Sharma = $D_2$ = 3 $\frac{1}{2}$ =$\frac{7}{2}$

The Time taken by Sharma for jogging =  $T_2$ = $\frac{3}{4}$ hour

Let the speed of Sharma = $S_2$ = $\dfrac{\textrm Distance }{\textrm Time}$

or,  $S_2$ = $\dfrac{\textrm [tex]D_2$  }{\textrm   $T_2$ }[/tex]

Or.  $S_2$ = $\frac{\frac{7}{2}}{\frac{3}{4}}$

∴   $S_2$ = $\frac{14}{3}$ = 4.67 miles per hour

Now, ∵   4.67 miles per hour   5 miles per hour

         ∴  $S_2$ $S_1$

So, Sharma jogged at slower late

Hence The speed of Sharma is slower than the speed of Brandi Answer