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svetlana [45]
3 years ago
11

PLEASE HELP THIS IS A LINEAR EQUATIONS

Mathematics
2 answers:
Stells [14]3 years ago
8 0
D or B I’m not sure
aalyn [17]3 years ago
7 0
Linear equations can be written different ways such the form y=mx+b, where m is the slope of the line and b is the y intercept.
We can substitute our given coordinates into the equations to find out which one is correct.
A:
y =  \frac{2}{3} x + 4
y =  (\frac{2}{3}  \times  - 3) + 4 \\   y= \frac{ - 6}{3}  + 4 \\   y= - 2 + 4 \\  y= 2
For this equation, when the value of x is - 3, y is 2. This means that A is the correct equation as it passes through the given coordinate (-3,2), and has a slope (m) of 2/3.
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Yoooo how do you do this?!
Luden [163]

Answer:

I don't know dude sorry

7 0
3 years ago
Solve the problem algebraically. Clearly define all variables, write an appropriate equation, and solve.
hichkok12 [17]

Answer:

Y=8 and X=21

Step-by-step explanation:

The key to solving word (story) problems is to learn how to translate words and phrases into concise, precise math expressions (variables and operations).  Make a table and add to it as you do problems:

      is              means           =

    more than                        +

      twice                              2*x

      sum                               +

      of                            usually means multiply

     ...

Assign variables.  Try to assign variables to the values the problem asks you to find.

In this problem, there are two variables.   Let x = one number;   y = other numbers

Translate:

 "One number is 5 more than twice the other number"    means

            x          =    5    +        2     *      y

 "sum of the two numbers is 29"     means

      x   +   y                    = 29

Now, the easy math.

Use the value for x from the first equation and substitute that into the second equation:

    (5 + 2y)      +     y       =  29

     5 + 3y = 29                    (collect terms)

           3y = 24                (subtract 5 from both sides)

             y = 8

Now, put that value of y into either equation to solve for x  (Which equation is easier??)

     x + 8 = 29

       x  = 21                 (subtract 8 from both sides)

Checking (very important):

 Is 21 really 5 more than 2(8)?

      21 = 5+16     ?

      21  =  21? yes

 Is  21 + 8 = 29  ?

        29 = 29? yes

p.s., learn the process, don't just get the right answer;  there will be lots of problems that are solved the same way!

3 0
1 year ago
Convert 15 kilograms to pounds.
seraphim [82]
Your answer would be 33 lb. hope that helped
8 0
3 years ago
The worker was paid a day rate of $50 plus $3 for each box he filled with the apples that he
SCORPION-xisa [38]

Answer:

A y=mx+b y=3x+50

because $3 is the rate and $50 is what you get started off with

6 0
3 years ago
What is the slope of the trend line drawn into the scatter plot?
mario62 [17]
Formula for slope: \frac{y2-y1}{x2-x1}
Plug in points given: \frac{136-27}{13-2} 
= \frac{109}{11} = 9.9 = 9  \frac{9}{10} (Rounded) 

Slope: 9.9 = 9 \frac{9}{10}
7 0
3 years ago
Read 2 more answers
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