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nekit [7.7K]
3 years ago
14

A train has 100 passenger seats. Tickets for the train cost $200 per passenger when every seat is sold. When there are unsold se

ats, each passenger must pay an additional $5 per unsold seat. If x represents the number of unsold seats on the train, which of the following expressions represents the total number of dollars collected from passengers on the train?
A) 300-5X^2
B) (200+X)(100-5X)
C) (200-X)(100+5X)
D) (200+5X)(100-X)
Mathematics
1 answer:
monitta3 years ago
6 0
Answer to this is c.

Yeet
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What is the simplified form of 3 over 2x plus 5 + 21 over 8 x squared plus 26x plus 15 ?
Ivan
The simplified form of 3 over 2x plus 5 + 21 over 8 x squared plus 26x plus 15 is <span>6 over the quantity 4 x plus 3.

</span>

The solution would be like this for this specific problem:

( 3 /( 2x+5 )) + ( 21 / (8x^2 + 26x + 15))
= ( 3 /( 2x+5 )) + ( 21 / (8x^2 + 20x + 6x + 15))
= ( 3 /( 2x+5 )) + ( 21 / (4x(2x + 5) + 3(2x + 5))
= ( 3 /( 2x+5 )) + ( 21 /(2x + 5)(4x + 3)
= [ 3 (4x + 3) + 21 ] /(2x + 5)(4x + 3)
= [ 12x + 9 + 21 ] /(2x + 5)(4x + 3)
= [ 12x + 30 ] /(2x + 5)(4x + 3)
= 6(2x + 5) /(2x + 5)(4x + 3)
= 6 / (4x + 3)

<span>I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.</span>

6 0
3 years ago
Can someone help w number 4
strojnjashka [21]

Answer:

angle DFG = 49 degrees

angle JKL = 41 degrees

Step-by-step explanation:

When angles are complementary with each other, it means that if you add both of the angles up, it adds up to 90 degrees.

In this question, you would have to add up angle DFG and angle JKL and find the x that makes the equation equal to 90 degrees.

angle DFG = x + 5

angle JKL = x - 3

(x + 5) + (x - 3) = 90

2x + 2 = 90

2x = 90 - 2

2x = 88

x = 44

But since we have to find out the angle measures, we have to the "x = 44" with the x's in the DFG and JKL angles.

DFG = (44) + 5 = 49

JKL = (44) - 3 = 41

7 0
3 years ago
Can someone help please
Svetach [21]
I believe it would be d. equilateral. becuz a equilateral triangle is a triangle with 3 equal sides, and 3 equal angles.
7 0
3 years ago
What are the solutions to the following equation? select all that apply. 0= x^2 - x + 5
Dominik [7]

Answer:

I think it is a and f i could be wrong

Step-by-step explanation:

7 0
3 years ago
Name Perfect squares
Aleks04 [339]

<em>Answer:</em>

<em>The perfect squares are the squares of the whole numbers: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100 and so on.......</em>

Step-by-step explanation:

7 0
3 years ago
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