Answer:
Step-by-step explanation:
Let the two angles be 3x and 7x.
Supplementary angles add up to 180 degrees.
Therefore:
3x + 7x = 180
10x = 180
x = 18
3x = 3 * 18 = 54
7x = 7 * 18 = 126
Answer:
The two angles are 54 degrees and 126 degrees.
Answer:
5.40
Step-by-step explanation:
Assuming w is the cost of one milk, let w =20
c = .25 (20) +.40
c = 5+.4
c =5.4
Answer:

Step-by-step explanation:
Using the rules of exponents
×
=
,
= 1
m² ×
× 
=
× 
=
× 
= 1 × 
= 
Answer:
Complete solution is given in the images attached below for better demonstration