Question

Lindsay and Lorraine are trying to match the jump rope world record. Together, they need to jump 48 times in a row. Lindsay has gotten 14 jumps in a row, and Lorraine has gotten 13. Write an equation using (j) as the variable and show your work to determine how many more jumps they need to complete.

Answer 1

Lindsay: 14

Lorraine: 13

So 14 + 13 = j

                                                   14

                                                + 13

                                             ---------------

                                                   27

27=j

                                               World record: 48

                                               48-27=21

They have to jump 21 more times in a row.

IF your question is like this:

                      How many do they need to complete altogether?

Multiply EVERYTHING.

21 × 2 =

                                                            21

                                                         ×   2

                                                      -------------

                                                           43

                        They need to complete 43 more jumps altogether.

I really hope this helps :)