The Sunshine Skyway Bridge spans Tampa Bay, Florida.

Suppose one crew began building south from St. Petersburg, and another crew began building north from Bradenton.

The two crews met south of St.Petersburg approximately years after construction began.

a

Suppose the St.Petersburg crew built an average of .

Together the two crews built of bridge.

Find the average number of feet built per month by the Bradenton crew.

Let be represent the average number of feet built per month by the Bradenton crew.

The number of feet the St. Petersburg crew built in years is .

  (Subtract from each side)

                                  (Apply additive inverse property: )

                                                  (Subtract: )

                                             (Divide each side by )

                                                            (cancel common terms)

The Bradenton crew built an average of .

b

About how many miles of bridge did each crew build.

Each crew built a distance of .

.

Therefore, each crew built a distance of .

c.

Yes; it seems reasonable that two crews working apart able to complete the same amount of miles in the same amount of time.

a. The Bradenton crew built an average of .

b.Each crew built a distance of .

c.Yes; it seems reasonable that two crews working apart able to complete the same amount of miles in the same amount of time.