Answer:
30°, 45°, and 105°
Step-by-step explanation:
Find the value of x
2x + 3x+ 7x = 180
12x = 180
x = 180/12
x=15
Get the value of the angles
2x = 2(15)
3x= 3(15)
7x= 7(15)
The measure of the angles are 30°, 45°, and 105° respectively.
Answer:
BECAUSE
Step-by-step explanation:
Originally the word “corn” came from the Germanic word “kurnam,” meaning “small seed.” In the 17th century, salted beef started taking on the name “corned beef” in some parts of England because of the large “kernels” of rock salt used to preserve it. :)
We will define the following variables to solve the problem:
x = amount of round trips from 10 tons truck
y = amount of round trips from 12 tons truck
We write the system of equations:
x + y = 20
10x + 12y = 226
The solution to the system of equations is:
x = 7
y = 13
Answer:
10 tons truck makes 7 round trips
12 tons truck makes 13 round trips
Answer:
Step-by-step explanation:
Notice how each congruent square is divided into four equal parts. Since each square has four parts and there are four squares, there are 
of these parts in total. Because each of these parts make up 
of each square, all parts are equal. Therefore, you can count the total number of shaded parts to get your percentage.
The top left and bottom right both have one part shaded each for a total of 
parts.
The top right and bottom left have 
and 
parts shaded, respectively, for a total of parts.
Therefore, in total, there are 
parts shaded out of total parts.
Thus, the percentage of the total area that is shaded is:
.
