Savannah bought a box of nails for two projects. She uses 18 nails for the first project. For the second project, she uses 10 more than half the number of nails left in the box. Let n represent the original number of nails that come in a box. Which expression represents the number of nails Savannah uses for the second project?

n − 18/2 +10

1/2 n−18+10

n − 18 + 10/2

1/2 (n+18)+10

Question

Savannah bought a box of nails for two projects. She uses 18  nails for the first project. For the second project, she uses 10  more than half the number of nails left in the box. Let n represent the original number of nails that come in a box. Which expression represents the number of nails Savannah uses for the second project?

n − 18/2 +10 

1/2 n−18+10 

n − 18 + 10/2   

1/2 (n+18)+10

anonymous · Answer

suppose the box had 50 nails in it
if so,  how many were used for the second project?

isaidavila · Answer

1/2(n-18)+10