Answer:
>
Step-by-step explanation:
First we need to understand that the sum of adjacent angles on a straight line is 180°,meaning that when all the angles are added up the answer would be 180°
Here's how we can set up the equation:
2x+100°=180°
2x=80°
x=40°
Thus the answer is 40°
Again,hope it helps!
Answer:
x=12
Step-by-step explanation:
The linear equation for the number of cookies he receives, for x hours practicing the piano, is:

A <u>linear function</u> has the format given by:

In which:
- m is the slope, which is the rate of change.
- b is the y-intercept, which is the value of y when x = 0.
In this problem:
- We have two points: (5,15) and (10,20).
- The slope is given by <u>change in y divided by change in x</u>, then:

Then

Point (5,15) means that when
, which is used to find b.


The, the function is:

A similar problem is given at brainly.com/question/16302622
So 25 is 30 and 48 is 50 because you round to the nearest tenth