Subtract 5 from both sides.
Subtract 8n from both sides.
Divide both sides by -9 to solve for n.
The value of n is -4/9.
Subtract 8n from both sides.
Divide both sides by -9 to solve for n.
The value of n is -4/9.
Uncle Joe is cutting boards for bookshelves. If he begins with 9 feet of wood, how many shelves will he cut if each one is 1 1/2
1 answer:
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Solution :
Let A = Economics, B = Mathematics
n(A) = 311, n(B) = 243,
a). So,
= 311 + 243 - 135
= 419
b). n(A only) = 311 - 135
= 176
n(B only) = 243 - 135
= 108
Exactly one of these two courses
= 0.568
c). Neither economics nor mathematics
= 0.162