Answer:
4x>74+9
Step-by-step explanation:
4x+2×45
2×45x
74x×2
4x>9
4x>74+9
The measurement of ∠KNL is 102°
First, you must set up an equation to find x.

Then, you must simplify both sides of the equation.

Next, subtract 3x on both sides.

Then, subtract 2 on each side.

Next, divide 2 on each side.

Now that we have the value of x, we can substitute it in for angle KNL.
![[3(20+14)]](https://tex.z-dn.net/?f=%5B3%2820%2B14%29%5D)
![[3(34)]](https://tex.z-dn.net/?f=%5B3%2834%29%5D)

°
Answer: 8200 miles
Step-by-step explanation:
Based on the question, since she wants to go for five round trips, her first round trip is fixed at 3400 and she will have 4 more additional trips. This can them be calculated as:
= 3400 + 1200x
x = additional trips = 4
We then put the value of x into the equation
= 3400 + 1200x
= 3400 + 1200(4)
= 3400 + 4800
= 8200
She'll have 8200 mile after 5 round trips
X = the number of months the tire was used
y = the thickness of the tire tread
y = -(3/7)x + 20
Substitute x for 20 (the number of months the tire was used) and solve for y.
The next question: Substitute x for 49 (the number of months the tire was used) and solve for y.