Question

The temperature of a substance in a laboratory beaker dropped thirteen and one-half degrees Fahrenheit from its starting temperature, ending at sixty-eight and three-fourths degrees Fahrenheit. Let s equal the starting temperature. Which mathematical equation could be used to determine the starting temperature of the substance?

s plus thirteen and one-half equals sixty-eight and three-fourths

s plus sixty-eight and three-fourths equals thirteen and one-half
s minus thirteen and one-half equals sixty-eight and three-fourths s times sixty-eight and three-fourths equals thirteen and o

Answer 1

@Chineseboy15

Answer 2

The start temperature is s, and the temperature dropped thirteen and one-half degrees Fahrenheit.
So first we get
\[13\frac{ 1 }{ 2 }\]
The ending temperature is sixty-eight and three-fourths degrees Fahrenheit.
Thus
\[s-13\frac{ 1 }{ 2 }=68\frac{ 3 }{ 4 }\]
is the equation about s.

Answer 3

@iceicebaby

Answer 4

yes it is

Answer 5

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