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lawyer [7]
3 years ago
15

Y=2x-5 solve for x show all your steps

Mathematics
1 answer:
irakobra [83]3 years ago
7 0

Hi there!

Here are all the steps into solving this equation :

y = 2x - 5

Add 5 on each side of the equation

y + 5 = 2x

Divide each side of the equation by 2

\frac{y+5}{2} = x

Divide 5 by 2

\frac{y}{2} + 2.5 = x


There you go! I really hope this helped, if there's anything just let me know! :)

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Step-by-step explanation:

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Multiply this rate by 4 to get the answer.

15 * 4 = 60

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In Sarah‘s dance class 1/16 of the girls are also on the soccer team. what is the decimal form of this fraction
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Answer:0.0625


Step-by-step explanation:


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3 years ago
Dianna's dog pen is 2 feet wide by 18 feet long. She wants to change the dimensions of the pen but keep the area the same. The a
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4 feet wide by 9feet long
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3 years ago
I need help ASAP. I'm not good with math.
bonufazy [111]

Given:

The increase in pressure P is the linear function of the depth d.

P(d)=0.445d+14.7

The cost of dinner is $300 and $10 per students.

To find:

The initial value and rate of change and their interpretation.

Find the cost function C where n is the number of students.

Solution:

The slope intercept form of a linear function is

f(x)=mx+b          ...(i)

where, m is rate of change and b is y-intercept or initial value.

We have,

P(d)=0.445d+14.7        ...(ii)

From (i) and (ii), we get

m=0.445,b=14.7

The initial value is 14.7. It means, the pressure at sea level is 14.7 pounds psi.

Rate of change is 0.445. It means, the pressure is increasing by 0.445 pounds psi for every feet.

The cost of dinner is $300 and $10 per students.

Let C(n) be the total cost for dinner and n be the number of students.

Fixed cost = $300

Additional cost for 1 student = $10

Additional cost for n student = $10n

Now,

Total cost = Fixed cost + Additional cost

C(n)=300+10n

Therefore, the required cost function is C(n)=300+10n.

8 0
2 years ago
A horse ran 800 meters in 40 seconds , 1200 meters in 60 seconds , and 480 meters in 24 seconds . Is this a proportional relatio
frosja888 [35]

Answer:

This is a proportional relationship, the constant of proportionality is 20m/s and it represents that the horse can run 20 meters every second.  

Equation:  d = 20s, where d=distance and s=number of seconds.

Step-by-step explanation:

In order to find out whether this relationship is proportional, you need to see if the rate at which the horse runs is constant (the same).  If you look at the three sets of data (24, 480), (40, 800) and (60, 1200) where the pair is (seconds, meters), you can see that for any two sets of data the change in meters divided by the change in seconds is consistently 20m/s.  For example:

\frac{1200-800}{60-40}=\frac{400}{20}=20

Since the constant is 20, we know that the horse can run 20 meters every second.  To find the horse's total distance, we need to multiply the rate by the number of seconds that it runs:

d = 20s

8 0
3 years ago
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