Posted by Taylor on Monday, August 27, 2012 at 9:38pm.
what is the value of the expression?
156/3.2+71

pre algebra  josiah, Monday, August 27, 2012 at 10:09pm
I got 20 because you have to PEMDAS which is Parentheses Exponents Multiplacation Division Addition Subtraction. 156/3.2+71 First you have multiply 3 & 2 and you get 6. then you divide 6 by 6 and get 1. Then you minus 1 from 15 that equals 14 because you have to add and subtract from left to right. Then 14 + 7 = 211=20

pre algebra  Anonymous, Monday, August 27, 2012 at 10:32pm
6/3.2 = 1.875
15  1.875 = 13.125
13.125 + 7 = 20.125
20.125  1 = 19.125
Answer = 19.125

pre algebra  Steve, Tuesday, August 28, 2012 at 12:09pm
or, if as josiah interpreted, 3.2 = 3•2, then, since multiplication/division are done lefttoright, we have
156/3.2+71
152•2+71
154+71
17
How important are parentheses!
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