Answer:
Step-by-step explanation:
Answer:
Song =$1.50 Album =$12.99
Step-by-step explanation:
Lets assume Individual songs = x
albums=y
6x + y = 21.99-------- y= 21.99- 6x
4x + 3y= 44.97
Replace y in the second equation
4x+ 3(21.99-6x) = 44.97
4x +65.97- 18x = 44.97
14x= 21
x = 1.50
y= 21.99- (6*1.50)
= 12.99
Answer: 95.40
Step-by-step explanation:
7.95*12=95.40
Answer:
x = 16
Step-by-step explanation:
5 = 1/2(x) - 3
Add 3 to both sides.
8 = 1/2(x)
Rewrite for clarity.
1/2(x) = 8
x/2 = 8
Multiply both sides by 2.
x = 16.
Proof:
5 = 1/2(x) - 3
Substitute variable.
5 = 1/2(16) - 3
Multiply 1/2 and 16.
5 = 8 - 3
Subtract 3 from 8.
5 = 5
we are given equation of line

Equation of perpendicular line:
Firstly , we will find slope of line

we can compare it with
y=mx+b
we get

we know that
slope of perpendicular line will be -1/m
so, slope is

It passes through point (-4,5)
so, we can use point slope form of line

we get
..........Answer
Equation of parallel line:
Firstly , we will find slope of line

we can compare it with
y=mx+b
we get

we know that
slope of parallel line always equal
so, slope is

It passes through point (-4,-5)
so, we can use point slope form of line

we get
............Answer