Question

Robert purchased $2,000 worth of U.S. savings bonds. If bonds are sold in $50 or $100 denominations only, which of the following CANNOT be the number of U.S. savings bonds that Robert purchased? (1 point)
29
27
30
40
50

Answer 1

let's say a = no. fo 50$ bonds and b = no. fo 100$ bonds

50a+100b=2000 => a+2b=40

then you have:
a) a+b = 29 => b=11, a = 18
do the same for b, c, d, e

The number of bonds cannot be 50
a+b=50
a+2b=40 => b=-10, a=60 ( b it's a negative number)

Answer 2

whats the answer

Answer 3

50 lol