The series in the form of arithmetic progression
The notation of A.P is a, a+d, a+2d.....
The summation notation is â‘
In this series a=3, d=7
Then the summation of A.P is â‘ = n/2(2a+(n-1)d)
=18/2(2*3+ (18-1)7)
= 9(6+17(7))
=9(6+119)
=9(125)
= 1125
Hence the total number of beads is 1125
Answer:
2
Step-by-step explanation:
7x - 2x = 13 - 3
5x = 10
x = 2
Answer:
If you're trying to solve for r. r=35
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
r+2r=105
(r+2r)=105(Combine Like Terms)
3r=105
3r=105
Step 2: Divide both sides by 3.
3r/3 = 105/3
r=35
Answer: GCF = 5<u>To find GCF:
</u>
25 = 5 x 5
40 = 5 x 8
GCF ⇒ Find the common factors.
Here, there is only 5 that is common. So 5 is the GCF.
Answer:
x= Multiplication
Step-by-step explanation:
1 x +2 -3 =8
