3,600
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If you age is x then 200 - 2x = 18 so 2x = 200 - 18 = 182 which give x = 91
9x+18y=200*14 x+y=200 y=200-x 9x+18(200-x)=2800 9x+3600-18x=2800 -9x=-800 x=88.9 grams y=111.1 grams x= 9 karat gold y=18 karat gold Answer: 88.9 grams of 9 karat gold must be mixed with 18 karat gold to produce 200 grams of 14 karat gold.
To find 36 percent of a number, multiply the number by 0.36. In this instance, 0.36 x 200 = 72. Therefore, 36 percent of 200 is equal to 72.
The answer depends on how much of the block is hollow.
200 x 200 x 200 x 200 = 1,600,000,000