Answer:
0.24
Step-by-step explanation:
Lena had $24 at the beginning
the movie ticket was $6
it's just basic algebra
There are three different type
Explain
In math , there are three different type , they are arithmetic progression ( Ap) , Geometric progression and Harmonic
Arithmetic Progression - When a fix constant is added to each number except the first number.
For example : 2,4,6,8,10..... Here 2 is added each time to get the next number.
2. Geometric Progression - When a fix constant is multiplied to each number except the first number.
For example : 2,6,18,54.... Here 3 is multiplies each time to get first number.
3. Harmonic - a harmonic progression (or harmonic sequence) is a progression formed by taking the reciprocals of an arithmetic progression.
For example : 1/2 , 1/4 , 1/6, 1/8 ....
B
Because
(1/4x+2/3y=5)12=3x+8y=60
And
(1/2x+3/2y=11)3=x+3y=22
If you need/want more detailed explanations please ask.
