A small auditorium has 10 rows of seats. There are 12 seats in the row and 16 seats in the second row the number of seats in a row continues to increase by 4 with each additional row. What is the total number of seats in the auditorium?
Answers
This problem can be solved through simple arithmetic progression
Let
a1 = the first term of the sequence
a(n) = the nth term of the sequence
n = number of terms
d = common difference
Sn = sum of all terms
given
a1 = 12
a2 = 16
n = 10
d = 16 -12 = 4
@n = 10
a(n) = a1 + (n-1)d
a(10) = 12 + (9)4
a(10) = 48 seats
Sn = (n/2) * (a1 + a(10))
Sn = 5* (12 + 48)
Sn = 300 seats
Therefore the total number of seats is 300.
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I need help here please..! I took a picture of the Multi -Step equations..!
How many seconds are in 3.14 hours?
Answers
When the box hits the bottom, it has 980 joules less PE than it had
before it started dropping.
(As well as 980 joules more kinetic energy.)
M= MASS
G= ACCELERATION DUE TO GRAVITY
H = HEIGHT
P.E= 10 * 10 * 10
P.E = 1000J
Equation 2: x = 20
A.
multiplication property of equality
B.
division property of equality
C.
subtraction property of equality
D.
addition property of equality
Answers
That will be your 100% sure answer!
Answer:
Step-by-step explanation:
On A.- Multiplication property of equality is multiplying both sides of an equation by the same number it does not change the equation.
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On B. - Division property of equality is dividing both sides of an equation by the same non-zero number it does not change the equation.
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On C.- Subtraction property of equality is subtracting the same number from both sides of an equation it does not change the equation.
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On D.- Addition property of equality is adding the same number to both sides of an equation it does not change the equation.
x-6=14
First you had to add by six from both sides of an equation form.
x-6+6=14+6
Then simplify by equation.
x=20
Final answer:
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Hope this helps!
And thank you for posting your question at here on brainly, and have a great day.
-Charlie
Answers
Answer:
The Answer is Standard DeviATION sorry i accidentally hit my caps lock
Step-by-step explanation:
b.2y + 3x = 10
c.2x + 3y = 10
Answers
x - the abscissa;
y - the ordinate.
Answers A and B represents: "Three times the abscissa increased by twice the ordinate is 10." Therefore A are B are wrong.
Answer:
C ) 2 x + 3 y = 10
Answers
B. 21.3
C. 14.9
D. 26.8
Answers
Angle JLK and Angle KLM are also complimentary angles, meaning that they both add up to 90 degrees, therefore angle JLK = 90-55=35degrees
Now, SOHCAHTOA comes in handy to find JL. Since we know JLK and JK, this is going to be a breeze.
Since the sides we are using are opposite and adjacent to JLK, we are going to use tan.
So: tan = o/a
however, as we don't know a, we need to rearrange the equation so a is on its own
tan=o/a (times both sides by a)
tan a = o (divide both sides by tan)
a = 0/tan
Now we can solve the equation with the information given
a = 26/tan35
a = 26/0.7
a=37.13184818
=> 37.1
So, you can put down A as your answer :D
Answer:
37.1
Step-by-step explanation: