Kaylee conducted a scientific experiment. For a certain time, the temperature of a compound rose 1 1/2 degrees every 3/5 of an hour. What was the rate, in degrees per hour, that the temperature of the compound rose? Enter your answer as a whole number, proper fraction, or mixed number in simplest form.
Kaylee conducted a scientific experiment. For a certain time, the temperature of a compound rose 1 1/2 degrees every 3/5 of an hour. What was the rate, in degrees per hour, that the temperature of the compound rose? Enter your answer as a whole number, proper fraction, or mixed number in simplest form.
Sometimes we aren't certain whether to multiply or divide.
Tip: In math, "per" means "divided by" so
"degrees per hour" means divide the degrees by the hours
3 / 2 degrees
–––––––––––––
3 / 5 hour
To divide by a fraction,
invert the divisor and
multiply.
3 5
––– * ––– deg/hr
2 3
The 3's cancel, leaving
5
––– deg/hr
2
Which probably the simplist form is 2-1/2 deg/hr (two and a half degrees per hour)
.
+4 Given that the temperature rose 1 1/2 degrees every 3/5 of an hour, we can convert the given information into a rate per hour.
Let's calculate the change in temperature per hour:
First, we'll find the change in temperature for 1 hour.
Since 3/5 of an hour is equal to 1, we can say that in 1 hour, the temperature will rise by 1 1/2 degrees.
Therefore, the rate at which the temperature rose is 1 1/2 degrees per hour, which can also be written as a mixed number: 1 1/2.
So, the temperature rose at a rate of 1 1/2 degrees per hour. My-Estub.com Login
