What integer most nearly approximates ( 50 )( 80 ) ? A. B. C. D. E.

Download Report

Transcript What integer most nearly approximates ( 50 )( 80 ) ? A. B. C. D. E.

What integer most nearly approximates ( 50 )( 80 ) ?
A.
20
B.
40
C.
63
D.
200
E. 2,000
The correct answer is C.
Explanation:
( 50 )( 80 )  ( 25  2 )( 16  5 )  (5 2 )( 4 5 )  20 3  20(3)
or 60; 63  60
Or, 50 is about 7, 80 is about 9, so ( 50 )( 80 )
is about 63. So 63 is the best approximat ion.