X = 1 hr lessons and y = 1/2 hr lessons
x + y = 35......y = 35 - x
40x + 25y = 1115
40x + 25(35 - x) = 1115
40x + 875 - 25x = 1115
40x - 25x = 1115 - 875
15x = 240
x = 240/15
x = 16 <=== there are 16 one-hr lessons
and 19 half-hr lessons
Answer:
tan G = 1.6071
Step-by-step explanation:
tan G = 45/28
tan G = 1.6071
No because irrational cant be a simple fraction and 9/15
is 0.6
so... it is not irrational
Answer:
Step-by-step explanation:
The change of form formula (exponential to logarithm) is:
Looking at the problem given, we can simply write the logarithmic form as:
This is the answer.
Yes because it has an odd number on the end.
