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BARSIC [14]
3 years ago
9

Write as an algebraic expression and then simplify if possible The distance traveled by a train in three hours with a constant s

peed of r miles per hour.
Mathematics
1 answer:
Ierofanga [76]3 years ago
8 0

<u>Answer:</u>

Distance = 3r

<u>Step-by-step explanation:</u>

We are to write an algebraic expression and then simplify it for the given situation:

<em>The distance traveled by a train in three hours with a constant speed of r miles per hour.</em>

We know the formula of distance linking the speed and the time.

Distance = speed × time

Substituting the given values to get:

Distance = r × 3

Distance = 3r

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Find the equation for<br> each problem.
IRINA_888 [86]

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4 0
4 years ago
The difference of x and y is the same as 3 times the sum of x and 2
Anon25 [30]

Answer:

x - y = 3(x + 2)

  • x - y = 3x + 6 is the simplified answer and is also correct

Step-by-step explanation:

The difference of x and y is the same as 3 times the sum of x and 2

x - y = 3(x + 2)

x - y = 3x + 6

7 0
3 years ago
I need help asap. everythings in the image
Fudgin [204]

The function in terms of the time (t) is t=d/r and the value of the time (t) for the given values is 5.

<h3>Linear Function</h3>

An equation can be represented by a linear function. The standard form for the linear equation is: ax+b , for example, y=2x+7. Where:

a= the slope

b=constant term that represents the y-intercept.

For the given example: a=2 and b=7.

In the exercise is asked the equation for the time (t) in the function of the distance (d) and the rate (r).

Thus, if d=rt, we will have t= d/r

Replacing the variables for the given values for finding t. The question gives:

distance (d) =40

rate (r) = 8

Thus, you will have t= 40/8. Then, t=5

Therefore, the answer is the fourth option.

Read more about the linear equations here:

brainly.com/question/2030026

#SPJ1

7 0
2 years ago
Given that x is an even number, express, in terms of x, the product of the next two odd numbers.
wariber [46]

Answer:

Odd is the answer.

Step-by-step explanation:

An even number can be written in the form 2x, where x is an integer.

An odd number can be written in the form 2x + 1, where x is an integer.

So two odd numbers can be represented by 2a +1 and 2b +1, the product would be:

(2a + 1)(2b +1) = 4ab + 2a + 2b + 1 = which can be written as 2(2ab + a +b) + 1, but 2ab +a + b represents some integer, so 2ab + a + b = x.

So (2a + 1)(2b + 1) = 2(2ab + a + b ) + 1 = 2x +1 which is odd.

6 0
3 years ago
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