Answer:
= 5n - 2
Step-by-step explanation:
The nth term of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Given a₄ = 18 , then
a₁ + 3d = 18 , that is
3 + 3d = 18 ( subtract 3 from both sides )
3d = 15 (divide both sides by 3 )
d = 5
Then
= 3 + 5(n - 1) = 3 + 5n - 5 = 5n - 2 ← explicit rule
Answer:
Triangle: 120
Quadrilateral: 90
Pentagon: 72
Octagon: 45
Decagon: 36
30-gon: 10
50-gon: 7.2
100-gon: 3.6
Step-by-step explanation:
360/n = the measure on the exterior angle
n = the number of sides
A) 3b-7b
-4b
b) a+a-5a
-3a
c) -3-3r
cannot be simplified, no like terms
d) 7t-8t-8
-t-8
e) -15p-20
cannot be simplified, no like terms
f) -g-g-g
-3g
The answer to your question is 1.6
The total amount that was spent is $6099
<h3>How to determine the total amount that was spent?</h3>
The given parameters are
Number of kids = 99
Pass = $56 per kid
Arcade game = $555
The total amount that was spent is calculated as
Total = Number of kids * Pass + Arcade game
So, we have
Total = 99 * 56 + 555
Evaluate the expression
Total = 6099
Hence, the total amount that was spent is $6099
Read more about expressions at
brainly.com/question/723406
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