The first four terms are -6, -7, -9 and -13.
Step-by-step explanation:
- Step 1: Given first term, a(1) = -6 and the nth term, a(n) = 2a(n-1) + 5. FInd the first four terms.
⇒ a(1) = -6
⇒ a(2) = 2a(1) + 5 = 2 × -6 + 5 = -12 + 5 = -7
⇒ a(3) = 2a(2) + 5 = 2 × -7 + 5 = -14 + 5 = -9
⇒ a(4) = 2a(3) + 5 = 2 × -9 + 5 = -18 + 5 = -13
1/8 2/9 5/12 13/18
This is already ordered by denomenator.
Now for the exact value you need to make a common factor
The denamonators are:
8= 2*2*2
9=3*3
12=2*2*3
18=2*3*3
The least common factor is:
2*2*2*3*3=72
As this number will be divisible by all of the above.
1/8 2/9 5/12 13/18 becomes
9/72 16/72 30/72 52/72
So you can see that they are already in order by value too.
Answer:69.92
Step-by-step explanation:
Answer: 4 Notebooks
Step-by-step explanation:
The number of notebooks is x, the number of markers is 2x+3.
Since the price per notebook is $5 we can write it as 5x, And the price per marker is $2, we can write that as 4x+6
5x+4x+6=42
9x=36
x=4
so he bought 4 notebooks and 11 markers.
CHECK: 4*5=20 and 11*2=22 20+22=42
Answer:
$2,365
Step-by-step explanation:
Divide $61,490 by 26...