Complete the solution A 1277milelong highway is in its third
     Complete the solution.  A 12.77-mile-long highway is in its third and final year of construction. In the first year, 2.46 miles of the highway were completed. In the second year, 4.95 miles were finished. How many more miles of the highway need to be completed?  Analyze  The planned highway is  miles long.  The first year,  miles were completed.  The second year,  miles were completed.  How many more  of highway need  to be completed  Form  We will let x = the number of  of highway that need to be completed. We now translate the words of the problem into an equation.  +  +  +  Solve 2.46 + 4.95 +  = 12.77  + x = 12.77  7.41 + x =  = 12.77 = 7.41  x =  State  The number of miles of highway that need to be completed is  Check  Add:  2.46  +  4.95 /12.77  The result checks. 
  
  Solution
12.77
2.46
4.95
How many more?
 12.77 - 2.46 - 4.95
5.36 ---> fourth answer
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x = the number of \"miles\" of highway...
2.46 + 4.95 + x = 12.77
7.41 + x = 12.77
7.41 + x - 7.41 = 12.77 - 7.41
x = 5.36
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State
5.36 miles
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Check :
 5.36

