Answer:
9%
Step-by-step explanation:
divide 72/85 you get a long decimal problem and round it up
The least and greatest amounts that the two friends could spend on food are 100 and 140 respectively
Functions and values
Functions are expressions written in terms of letters known as variables. Given the equation that represents the food budget of two friends as shown;
1/2(x-120)=10
where x is the amount spent on food.
In order to determine the least and greatest amounts that the two friends could spend on food,
For the least amount
-(x-120) = 20
-x+120 = 20
x = 100
For the greatest amount
(x-120) = 20
x = 140
Hence the least and greatest amounts that the two friends could spend on food are 100 and 140 respectively
learn more on functions and values here: brainly.com/question/2284360
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It’s b
it’s not A because it’s not percentages it’s decimals using boxes as an example
Answer:
The temperature on the 5th day was of -9ºC.
Step-by-step explanation:
Mean of a data-set
The mean of a data-set is the sum of all values in the data-set divided by the number of values.
The mean temperature for the first 4 days in January was 1°C.
This means that during the first 4 days, the sum of the temperatures was 4*1 = 4ºC.
The mean temperature for the first 5 days in January was -1°C.
First 4 days: Sum of 4º
5th day: Temperature of x.
The mean is -1, so:
![-1 = \frac{4 + x}{5}](https://tex.z-dn.net/?f=-1%20%3D%20%5Cfrac%7B4%20%2B%20x%7D%7B5%7D)
![x + 4 = -5](https://tex.z-dn.net/?f=x%20%2B%204%20%3D%20-5)
![x = -9](https://tex.z-dn.net/?f=x%20%3D%20-9)
The temperature on the 5th day was of -9ºC.
Answer:
1/7(n)-7 <u><</u> 98
Step-by-step explanation: