73. The low temperatures (in °C) for 6 consecutive days in a Montana city were 9°, 3°, 4°, 16°, 11°, and 5°. What would the low temperature have to be on the seventh day to have a mean low temperature of 9° for the week
so, @Yarhh, why did you also post the same exact question? So annoying!
AAAaannndd the bot gets it wrong yet again!
9+3+4+16+11+5+x = 7*9
x = 15
73. The low temperatures (in °C) for 6 consecutive days in a Montana city were 9°, 3°, 4°, 16°, 11°, and 5°. What would the low temperature have to be on the seventh day to have a mean low temperature of 9° for the week
To find the low temperature on the seventh day that would give a mean low temperature of 9°C for the week, we can use the formula for calculating the mean (average) temperature.
The formula to calculate the mean (average) is:
Mean Temperature = (Sum of Temperatures) / Number of Days
In this case, we know that the mean temperature for the week is 9°C, and we want to find the temperature on the seventh day.
Let's use the formula:
9 = (9 + 3 + 4 + 16 + 11 + 5 + T) / 7
Where T represents the temperature on the seventh day that we want to find.
To solve this equation, we'll need to isolate T. We can do that by multiplying both sides of the equation by 7 to get rid of the denominator:
7 * 9 = 9 + 3 + 4 + 16 + 11 + 5 + T
63 = 48 + T
Now, subtract 48 from both sides:
63 - 48 = T
15 = T
Therefore, the low temperature on the seventh day would need to be 15°C to have a mean low temperature of 9°C for the week.