((retail - cost) / retail) * 100 =
((5 - 3.5) / 5) * 100 =
(1.5/5) * 100 =
0.3 * 100 =
30% <==
Answer:
Step-by-step explanation:
12:15
Answer:
Step-by-step explanation:
Start by distributing the 
into all of the terms in between the second parentheses.
Next, distribute the 
into all of the terms in between the second parentheses.
For the sake of simpler interpretation, I separated the two above, but they are together:
Since the terms are already in descending order, we do not need to rearrange them.
Answer: Angle A is 115 degrees
Step-by-step explanation:
In triangle ABC, the measure of angle A is seven more than four times measure of angle B. This means that
Angle A = 4(Angle B) + 7
The measure of angle C is eleven more than measure of angle B. This means that
Angle C = Angle B + 11.
The equations are
A = 4B + 7 - - - - - - - - 1
C = B + 11 - - - - - - - - - - 2
Recall that the sum of the angles in a triangle is 180 degrees. This means that
A + B + C = 180 degrees
Substituting equation 1 and equation 2 into A + B + C = 180, it becomes
4B + 7 + B + B + 11 = 180
6B + 18 = 180
6B = 180 - 18 = 162
B = 162/6 = 27 degrees
Substituting B = 27 into equation 1, it becomes
A = 4×27 + 7 = 108 +7
A = 115 degrees
Substituting B = 27 into equation 2, it becomes
C = 27 + 11
C = 38 degrees
Sum of the angles is 115 + 27 + 38 = 180
