At a pumpkin patch, if Armando guesses the weight of his pumpkin within 0 point 3 pounds, he gets to take the pumpkin home for free. If his pumpkin weighs 4 point 9 pounds, which two equations can be used to find the minimum and maximum weights he can guess in order to get his pumpkin for free?
Answer
A
x plus 4 point 9 is equal to 0 point 3 and x plus 4 point 9 is equal to negative 0 point 3
B
x plus 0 point 3 is equal to 4 point 9 and x plus 0 point 3 is equal to negative 4 point 9
C
x minus 4 point 9 is equal to 0 point 3 and x minus 4 point 9 is equal to negative 0 point 3
D
x minus 0 point 3 is equal to 4 point 9 and x minus 0 point 3 is equal to negative 4 point 9
Explanation
A guess is within 0.3 pounds of 4.9 pounds when its difference from 4.9 is either 0.3 or −0.3 at the two boundaries. So the equations are x − 4.9 = 0.3 and x − 4.9 = −0.3, which are choice C.
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