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GEOLOGY A geologist weighed a rock sample at the site where it was discovered and found it to weigh $17 \frac{7}{8}$ lb. Later, a more accurate digital scale in the laboratory gave the weight as 17.671 lb. What is the difference in the two measurements?

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$0.204 l b$

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let's find the difference between these two numbers. So that means we're gonna have to convert 17 and 7/8 into a decimal. So we'll keep the 17 as it is and just convert the 7/8. That is, we'll have to divide seven with plenty of decimal points afterward, divided by eight, it does not go into seven, but it does go into 78 times, where eight times eight is 64. This subtraction will give us a six, and we can carried on a zero to make it 60. It goes into 67 times with eight times seven equaling 56 and that subtraction leaves us with four and a zero turns. That into 40 eight goes into 40 exactly five times five times eight is 40. So when we make the subtraction, we get a zero, meaning we are done. So 17 and 7/8 is equal to 17.875 and now we can do what this problem actually asked us to do. That is, we confined the difference between these two numbers. So if we subtract 17.875 minus 17.671 we will get five minus one is 47 minus 708 minus six is too. And 17 by 17 0 So we're left with 0.204 as the difference between these two numbers and our answer.

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