A construction worker is placing rivets in a new bridge. He uses 42 rivets to build the first 2 feet of the
bridge. If the bridge is to be 2200 feet in length, predict the number of rivets that will be needed for the entire bridge.

about 105 rivets to build 2200 ft of the bridge .

Step-by-step explanation:

first i found out how many rivets it took to build one ft of the bridge .

i divided 42 by 2 to get how many rivets it took to build one ft. i got (21)

21 rivets for 1 ft

next i divided 2200 ft by 21 rivets (2200÷21)= 104.76

104.76 rounded is 105

9x