Exercise 17 Page 94

We are given four statements and want to determine which one is not true. Let's rewrite each decimal number as a fraction or a mixed number in simplest form. Then we can see which result does not match its given number. We can organize the numbers in a table.

Let's consider the first decimal number. 0.6 This number can be read as 6 tenths. This means that we can write it as a fraction with a numerator of 6 and with a denominator of 10. Then we can simplify the fraction by dividing both the numerator and denominator by 2.

We found that 0.6= 35. Now we will consider the next decimal number. 0.125 This number can be read as 125 thousandths. This means that we can write it as a fraction with a numerator of 125 and with a denominator of 1000, then simplify the fraction by dividing both the numerator and denominator by 125.

We found that 0.125= 18. Next, let's rewrite the third decimal number. 2.015 We can read this number as 2 and 15 thousandths. This means that we can write it as an integer number 2 and a fraction with a numerator of 15 and with a denominator of 1000. Let's simplify the fraction by dividing both the numerator and denominator by 5.

We found that 2.015=2 3200. Finally, let's rewrite the last decimal number. 10.38 This number can be read as 10 and 38 hundredths, so let's write it as an integer number 10 and a fraction with a numerator of 38 and with a denominator of 100. Then we can simplify the fraction by dividing both the numerator and denominator by 2.

Now let's compile our calculations into our the table.

We can see that 2.015 is not equal to 2 1100. This means that the correct answer is C.