Answer:
The temperature on Celsius scale for 86 ºF is 30 ºC.
Step-by-step explanation:
Both degrees Celsius and Fahrenheit are relative scales of temperature. The relationship between degrees Fahrenheit and degrees Celsius is summarized by the equation below:
(1)
Where:
- Temperature, measured in degrees Fahrenheit.
- Temperature, measured in degrees Celsius.
If we know that
, then its equivalent temperature on Celsius scale is:


The temperature on Celsius scale for 86 ºF is 30 ºC.
Answer:
Step-by-step explanation:
Let be "l" the number of CDs Ms.Kitts sold last week, and "t" the number of CDs she sold this week.
You need to remember that:
1. The word "times" indicates a multiplication.
2. The word "more" indicates addition.
Then, the sentence "Last week she sold 6 more than 3 times the number of CDs that she sold this week" can be represented with equation:

According to the information given in the exercise, the sum of the number of CDs Ms. Kitts sold last week and this week is: 110 CDs.
Since a sum is the result an Addition, you can write the following equation:

Therefore, the System of equations that can be used to find the number of CDs she sold last week and the number of CDs she sold this week, is:
To find the mean of a number sequence, add all the numbers together and divide them by the number of numbers used...
10 + 11 + 10 + 10 + 8 = 49
49 ÷ 5 = 9.8
The mean does not match 10, so make up numbers untill it matches.
10 + 11 + 10 + 10 + 8 + 6 ÷ 6
= 10 !
The anwser would be y = 6