1. A karate school offers a package of 12 group lessons and 3 private lessons for $132. It also offers a package of 10 group lessons and 2 private lessons for $100. What is the cost of private lessons?
Identify the variables for the problem:
Write a system of equations to represent the
problem:
Solution and Answer to Question:

Variables:

x - group lessons

y - private lssons

The systems of equations to represent the problem:

12x+3y=132

10x+2y=100

Solution:

The cost for private lessons is $200

Step-by-step explanation:

x is the number of group lessons

y is the number of private lessons

multiply 12x+3y=132 by 5

multiply 10x+2y=100 by -6

so now the two equations you have are

60x+15y=660

-60x+-12y=-600

add the two equations together and you get

3y = 600

now solve for y:

y=200

the anwser is d) 75°

step-by-step explanation:

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !