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Write an expression that represents the temperature (in degrees 72.3 Fahrenheit) of the water after Raul added the ice cubes that went down to -39.1 Fahrenheit. Write the expression as the sum of two numbers.I need help breaking up each of the place values. In this case the place values are tens,ones,and tenths.

User Cchampion
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1 Answer

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15 votes

Part B:

The solution in Part 1 is -39.1, so we can berak this result in tens, ones and theths so:


\begin{gathered} \text{tens}\to30 \\ \text{ones}\to9 \\ \text{theths}\to0.1 \end{gathered}

So if we sum the we have the same answer


30+9+0.1=39.1

Part C:

the operation we can rewrite is:


T=72.3+(-111.4)=(70+2+0.3)+(-100-10-1-0.4)

and using the distribution propertie we can write it like:


T=-100+(70-10)+(2-1)+(0.3-0.4)

Part D:

and then we operate using the assosiative propertie:


T=-100+60+1-0.1

Part E:

Finally we simplyfy the expression:


T=-100+60+1-0.1=-39.1

Part F:

now he meassure the temperature of the water and it dropes -0.6 Fº so we have to rest this to the last temperature so:


-39.1-0.6=-39.7

User Danyun Liu
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