Answer:
x = 11
Step-by-step explanation:
ΔLKM is an equilateral because a triangle with all 3 sides that are congruent is an equilateral triangle.
Angles in an equilateral triangle are all 60°.
Thus, ∠L = 60°.
=> 3x + 27 = 60
=> 3x = 33
=> x = 11
Answer:
It's the fourth one y=-1/6x+2/3
Step-by-step explanation:
Answer:

Step-by-step explanation:
The given statement is "I think of a number, add seven then divide by five".
Let the unknown number be x.
Now, add 7 to the number = x+7
If we divided them by 5,
.
So, the required algebraic notation is
.
Answer:
E. -8, -29
Step-by-step explanation:
a-b=21
5a -2b =18
Take the first equation and solve for a by adding b to each side
a-b=21
a-b+b=21+b
a = 21+b
Now substitute a=21+b into the second equation
5a -2b =18
5(21+b) -2b =18
Distribute the 5
105 +5b-2b =18
Combine like terms
105 +3b =18
Subtract 105 from each side
105-105 +3b = 18-105
3b = -87
Divide each side by 3
3b/3 =-87/3
b = -29
if b = -29, we can substitute it into a =21+b
a = 21-29
a = -8
52 weeks = 1 year
104 weeks = 2 years
Once: 475/104 = $4.57 per visit
Twice: 475/104x2 = $2.28 per visit
Five Times: 475/104x5 = $0.91