10000 because 25x4= 100 so add in the other two zeros and you have 10000
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To find the value of x when 16x equals 400, you would divide 400 by 16. This calculation results in x = 25. Therefore, 16 times 25 equals 400.
x * 1600 = 400 x = 400 / 1600 x = 1/4 x = 25% ■
25 x 16 = 400
2/5 x 1000 = 400
16