How do I solve this problem?

Is (y - x) and -(x - y) equivalent

Len [333]

Yes, because if you simplify -(x - y) you will get -x + y, which can be rewritten an y - x.

Hope this helps!

7 0

3 years ago

Riley is training to run in a 5-kilometer road race. She would like to

AveGali [126]

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Objective is to compete in a 5km road race ;

Reduction in race tone per month = 15 seconds

Rqce comes up in 3 months

Total change in race time he hopes to achieve :

1. What integer represents the change in race time Riley wants to achieve each month ; 15 seconds

2. What integer represents the number of months she will train?

She will train for 3 months ; 3 months

Write a multiplication expression that can be used to find the total change in time.

Change in race time * number of month she will train

15 seconds * 3 months = 45 seconds

Let initial race time = (t)

t - 15(month in which race comes up).

t - (15-3) = t - 45

5 0

4 years ago

A line plot with Kelly's ribbon lengths is shown .she adds two more ribbons so that the total length of ribbon is 200 inches . W

zysi [14]

Answer: (I changed it back to fraction form instead of decimal because it seems that is how you are doing it)

Two possible lengths of ribbon (In inches) are 25 and 133 3/4 

Step-by-step explanation:

Okay, so- First, You need to find out how much ribbon is there before the two additional ones are added. Like this:

12 + 14 2/4 + 14 3/4 = 41 1/4

Next, subtract that amount from 200 to get the number of inches of ribbon that are needed to get 200 inches of ribbon. Like this:

(I changed it to a decimal to make it easier, so don't mind that)

200 - 41.25 = 158.75

So, 158.75 inches of ribbon are needed to get 200 inches. You can subtract any number less than 158.75 from that to get two seperate ribbon measurements.

(This might sound confusing so here)

For example:

158.75 - 25 = 133.75 (The bolded numbers are the two measurements)

158.75 - 65 = 93.75

So, Two possible lengths (in inches) of ribbon that kelly could have added are "25" and "133.75 "

Two possible lengths (in inches) of ribbon that kelly could have added are also "65" and "93.75"

Hope this helps! Please tell me if you have any questions!

4 0

3 years ago

Name the property that justifies the given statement 2x_2y=2(x_y)

Gemiola [76]

Answer:

Distributive property

Step-by-step explanation:

With the distributive property, it is possible to simplify expressions that consist of an expression term such as (a + b) being multiplied by one singular term such as c given as follows

c ×(a + b) = c·a + c·b

Factoring, which is the reverse use of the distributive property enables the difference or the sum of two products, each having a common factor to be the presented as the difference or the sum of two numbers multiplied by the common factor as follows;

2·x - 2·y = 2·(x - y).

7 0

3 years ago

Adjust m and b to graph the equations below.

Marat540 [252]

Answer:

The graph of both the equation is attached below, red line is the equation of $y=-x-1$ and blue line indicates the equation of $y = 2x + 2$ . Their y-intercepts are also indicated.

Step-by-step explanation:

Considering the equations

$y=-x-1$

and

$y = 2x + 2$

As the slope-intercept form of the equation is $y = mx + b$ , where $m$ is the slope of the line and $b$ is the y-intercept.

As the equation

$y=-x-1$ and comparing it with $y = mx + b$

So, $m=-1$ and $b = -1$

Also the equation

$y = 2x + 2$ and comparing it with $y = mx + b$

So, $m=2$ and $b = 2$

The graph of both the equation is attached below, red line is the equation of $y=-x-1$ and blue line indicates the equation of $y = 2x + 2$ . Their y-intercepts are also indicated.

Keywords: y-intercept, slop-intercept form, equation, graph, slope

Learn more about slop-intercept form, equation and graph from brainly.com/question/1578921

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5 0

3 years ago

Read 2 more answers