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devlian [24]
2 years ago
11

A series contains 18 numbers and has a sum of 4,185. the last number of the series is 275. what is the first number?

Mathematics
1 answer:
PilotLPTM [1.2K]2 years ago
7 0

Answer:

ai = 190.0

Step-by-step explanation:

I'll presume the sequence is arithmetic, simply because assuming the series is mathematical, there is more than one solution.

Assuming the series is comprised of numbers in an arithmetic progression, you will have...  (see attachment for better explanation and step by step.)

Download docx
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Wendy had 35 tickets for games at carnival. She used 1 5of the tickets to play the ball toss game. Then she used 1 2of the remai
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A movie theater charges $15 for standard viewing, $20 for 3D viewing, and $35 for Dinner and a
Ludmilka [50]

The quantity of each type of seats sold are as follows:

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  • 3D seats = 800

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According to the question,there are four times as many 3D, x seats as Dinner and a Movie, y seats.

That is, x = 4y

Also, total seats

= (x) + (y) + (z) = 3000...….............eqn(1)

Also, If the theater brings in $53,000 when tickets to all 3000 seats are sold.

  • 20x + 35y + 15z = 53000...........eqn(2)

By substituting 4y for x in equations 1 and 2; we have;

<em>5y + z = 3000</em>..…........eqn(3) and

<em>115y + 15z = 53000</em>.........eqn(4)

By solving equations 3 and 4 simultaneously; we have;

y = 200 and z = 2000

and since x = 4y

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The quantity of each type of seats sold is as follows:

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Read more:

brainly.com/question/12413726

5 0
3 years ago
У = -11/4
Amiraneli [1.4K]

Answer:

so your answer will be A!!!!!!!

Step-by-step explanation:

-11/8+(-11/4)

=-11/8-11/4

=-11/8-22/8

-33/8

so this is because x represents (-11/8)+ in the equation -11/8+(-11/4), and y represents +(-11/4) in the same equation.

hope this helps!!!!

3 0
3 years ago
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