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3 years ago

Your lunch will cost more than $6

Mathematics

1 answer:

maks197457 [2]3 years ago

7 0

Answer:my lunch is free wdym

Step-by-step explanation:

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Two trains start from Fort Worth traveling at the same speed. The trip for Train W takes 20 hours, while the trip for Train Z ta

MrMuchimi

Answer:

The equation that best models this situation is :

b. $\frac{x}{20}=\frac{x+400}{25}$

Distance traveled by Train W = 1600 miles

Distance traveled by Train Z = 2,000 miles

Step-by-step explanation:

Given:

Time taken for Train W to complete a trip = 20 hours

Time taken for Train Z to complete a trip = 25 hours

The city Train Z is traveling to is 400 miles farther away than the city Train W is traveling to.

both trains have same speeds and start from same location.

To find the distance in total each train travels.

Solution:

<em>Let length of the trip of Train W be </em>= $x$ miles

Speed of Train W can be given as :

⇒ $\frac{Distance}{Time}$

⇒ $\frac{x}{20}\ miles/h$

<em>So, the length of the trip of Train Z will be</em> = $(x+400)$ miles

Speed of Train Z can be given as :

⇒ $\frac{Distance}{Time}$

⇒ $\frac{x+400}{25}\ miles/h$

Since the speeds are same, so the equation to find $x$ can be given as:

⇒ $\frac{x}{20}=\frac{x+400}{25}$

Solving for $x$

Multiplying both sides by 100 to remove fractions.

⇒ $100\times \frac{x}{20}=100\times \frac{x+400}{25}$

⇒ $5x=4(x+400)$

Using distribution.

⇒ $5x=4x+1600$

Subtracting both sides by $4x$

⇒ $5x-4x=4x-4x+1600$

⇒ $x=1600$

Thus, Distance traveled by Train W = 1600 miles

Distance traveled by Train Z = $1600+400$ = 2,000 miles

3 0

3 years ago

The population of Canyon Edge is 210,000, and the rate of population growth is 12.5%.

sergejj [24]

For this case we have a function of the form:
$y = A * (b) ^ x
$
Where,
A: initial population
b: growth rate
x: number of years.
We then have the following function:
$y = 210000 * (1,125) ^ x
$
For x = 4 years we have:
$y = 210000 * (1,125) ^ 4

 y = 336379$
Answer:
the formula for exponential growth is:
y = 210000 * (1,125) ^ x
The population of Canyon Edge after 4 years is:
y = 336379

3 0

4 years ago

If 15 chocolates cost $11 then how much will one chocolate cost

mina [271]

Answer:

1 chocolate will cost about $0.73

Explanation:

You'd have to fine the unit rate. To do so you divide the cost,$11, by the number of chocolates,15 .

8 0

3 years ago

A computer technician charges $40.00 per hour plus a $70.00 service charge.your fathers firm hires him to hook up his companies

Debora [2.8K]