Posted by Nastia on Wednesday, May 23, 2012 at 11:19pm.
Diego has $10 to spend on school supplies. He wants to buy a calculator for $5.50 and several packs of mechanical pencil for $1.50 each.
What inequality can be used to find the maximum number of packs of mechanical pencils Diego can buy?
A. 1.5p + 5.5 _< 10
B. 5.5p + 1.5 _> 10
C. 1.5p + 5.5 _> 10
D. 5.5p + 1.5 _< 10

6th gmath  Jai, Wednesday, May 23, 2012 at 11:38pm
let p = number of packs of mech pencil
the total amount he could spend is
1.5p + 5.5
and this amount cannot be greater than (but can be equal to) $10, since his only money is $10. Thus,
1.5p + 5.5 _< 10
it's A.
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