On a scale of the Uniondale map, 1 inch represents 6 1/2 blocks. If the distance between Keyfood and walnut street school is 3.5
1 answer:
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Each of A, C, and D are rational, so presumably B is the answer here.
A is rational, since
, so 
.
C is also rational. If
, then 
. This would mean 
, and so 
.
D is rational by a similar argument. If
, then 
. So, 
, which means 
.
A is rational, since
C is also rational. If
D is rational by a similar argument. If
The standard form:
We have:
<em>multiply both sides by 2</em>
<em>add x to both sides</em>