Step-by-step explanation:
x+90+4x-75=180
add all the sides together and since its a triangle they equal to 180
Make an equation:
5x+12=6x
Use the subtraction property:
x=12
The final answer is that the cost for members and nonmembers will be the same when there have been 12 classes.
Answer:
360
Step-by-step explanation:
V= L•W•H/3
10×12×9÷3
What figure are we looking for?
