Lessica swing a lap in 29 2/5 martha can swing allowed in 2.8 seconds how much faster can my marta swing allowed in jessica

Given that                                   2

Jessica swing a lap in    29     seconds .

                                                      5

Marta swings in 2. 8 seconds .

We have Jessica time in mixed fraction and Marta time in decimals .

We first covert mixed fraction into improper .

       2               29 * 5 + 2                   145  + 2                 147

29   =        =          =  

         5                     5                                5                      5

                                         147

Thus Jessica time is     .

                                           5

Converting Marta time into fractions .

There is decimal . We have 2.8  seconds .

              28

2.8  =    .

               10

We have two fractions with different denominator .

One is having denominator 5 and another is having denominator 10 .

We need to make the denominator same of both the fractions .

Multiply first fraction (147/5) by 2 in both numerator and denominator to make the denominator 10 .

It become

147 * 2              294      

  =  

5 * 2                     10

Thus we get denominator of both the fractions same .

Jessica time is 294/10  and Marta time is  28/10 seconds .

Marta taking less time . She is faster .

Difference

294            28                    266

   -       =     seconds .

10                10                     10  

Converting to decimal , we get 26.6 seconds .

Marta is faster by 26.6 seconds .            

10% of increase is the final answer! : )

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.