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In which story is the answer to the question $0$ ? $\newline$ Choices: $\newline$ (A)In Montana, where Lexi lives, the lowest temperature recorded is $-70\degree\text{F}$ . Yesterday, the temperature was $70\degree\text{F}$ . How much higher was yesterday's temperature compared to the lowest temperature recorded? $\newline$ (B)In Montana, where Lexi lives, the lowest temperature recorded is $-70\degree\text{F}$ . Yesterday, the temperature was $70\degree\text{F}$ higher than the lowest temperature recorded. What was yesterday's temperature?

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Quantities that combine to zero: word problems

Full solution

Q. In which story is the answer to the question

0

?

\newline

Choices:

\newline

(A)In Montana, where Lexi lives, the lowest temperature recorded is

-70\degree\text{F}

. Yesterday, the temperature was

70\degree\text{F}

. How much higher was yesterday's temperature compared to the lowest temperature recorded?

\newline

(B)In Montana, where Lexi lives, the lowest temperature recorded is

-70\degree\text{F}

. Yesterday, the temperature was

70\degree\text{F}

higher than the lowest temperature recorded. What was yesterday's temperature?

Calculate Temperature Difference: Solve story (A). Calculate the difference in temperature between yesterday and the lowest recorded temperature. $\newline$ Calculation: $70\degree F - (-70\degree F) = 140\degree F$
Determine Yesterday's Temperature: Solve story (B). Determine yesterday's temperature based on the lowest recorded temperature. $\newline$ Calculation: $-70\degree F + 70\degree F = 0\degree F$
Identify Correct Answer: Identify which story's answer is $0$ . From Step $1$ , the difference is $140\degree F$ . From Step $2$ , yesterday's temperature is $0\degree F$ .

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