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Marrrta [24]
3 years ago
12

A train has 3 passenger cars and each car has 4 columns of seats and each column holds 40 passengers. If one of the cars has 15

people standing in addition to all of the sitting passengers, and the rest of the cars are full without anyone standing, how many passengers are on the train?
Mathematics
1 answer:
antoniya [11.8K]3 years ago
8 0

Answer:

There are a total of 495 people on the train

Step-by-step explanation:

Let's identify what we know:

1) The train has 3 passenger cars

2) Each passenger car has 4 columns, and each can accommodate 40 people.

3) All three passenger cars are full, but one of them has 15 additional people standing.

We can create a formula to model the problem:

x = ((3 x 4) x 40) + 15

x = the total number of passengers!

There are a total of 180 people sitting, and 15 additional people standing in one of the passengers cars, equaling a total of 495 passengers on the train.

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Answer:

7 miles in all

Step-by-step explanation:

1

5.5

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3 years ago
What type of function is y=4x^3+2
Rzqust [24]

Answer:

Cubic Function

Step-by-step explanation:

In mathematics, a cubic function is a function of the form f(x)=ax^3+bx^2+cx+d where the coefficients a, b, c, and d are real numbers, and the variable x takes real values, and a ≠ 0. In other words, it is both a polynomial function of degree three, and a real function.

4 0
3 years ago
What is the value of <img src="https://tex.z-dn.net/?f=%5Cfrac%7B81%5E4%7D%7B3%5E5%7D" id="TexFormula1" title="\frac{81^4}{3^5}"
IRISSAK [1]

Answer:3^1^1\\

Step-by-step explanation:

\frac{81^4}{3^5}

\frac{3^1^6}{3^5}

The base is same power can be add or subtract

3^1^6^-^5

3^1^1

5 0
3 years ago
Evaluate the expression when b=4 and x=-2 . <br><br> b-4x
oee [108]

Answer:

12

Step-by-step explanation:

b-4x

Plug in 4 as b and -2 as x

= (4)-4(-2)

Multiply 4 and 2

= 4-(-8)

Two negatives make a positive

= 4+8

= 12

I hope this helps!

4 0
3 years ago
Read 2 more answers
If f(x) = 7 + 4x and g (x) = StartFraction 1 Over 2 x EndFraction, what is the value of (StartFraction f Over g EndFraction) (5)
Degger [83]

Answer:

\frac{f}{g}(5) = 270 ⇒ Last answer

Step-by-step explanation:

* If f(x) = 7 + 4x

* If g(x) = \frac{1}{2x}

* We want to find \frac{f}{g}(5)

- Lets find at first \frac{f}{g}(x)

∵ f(x) = 7 + 4x

∵ g(x) = \frac{1}{2x}

∴ \frac{f}{g}(x)=\frac{7+4x}{\frac{1}{2x}}

- Lets divide the numerator by the denominator

∵ The numerator is 7 + 4x

∵ The denominator is \frac{1}{2x}

∴ (7 + 4x) ÷ \frac{1}{2x}

- Lets reverse the division sign to multiplication sign and reciprocal

  the fraction after the division sign

∴ (7 + 4x) × \frac{2x}{1}

∴ \frac{f}{g}(x) = 2x(7 + 4x)

∴ \frac{f}{g}(x) = 14x + 8x²

- Now substitute x by 5

∴  \frac{f}{g}(5) = 14(5) + 8(5)² = 70 + 200 = 270

∴  \frac{f}{g}(5) = 270

4 0
3 years ago
Read 2 more answers
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