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aalyn [17]
3 years ago
13

HELP ASAP ILL GIVE BRAINLIST AND POINTS

Mathematics
1 answer:
vesna_86 [32]3 years ago
7 0

Answer:

<u>system of equations: </u>set of one or more equations involving a number of variables

<u>substitution method: </u>

1. Solve one equation for one of the variables.

2. Substitute (plug-in) this expression into the other equation and solve.

3. Resubstitute the value into the original equation to find the corresponding variable.

<u>ex:</u>

-4x+3y=-2           y=x-1

plug in: -4x+3(x-1)=-2

simplify:  -x-3=-2

              -x=-2+3

              -x=1

answer:  x=1

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PLEASE HELP DUE TONIGHT
Strike441 [17]

Answer:

x=243

x =  \frac{343}{3}

x =  \frac{121}{2}

6 0
3 years ago
Read 2 more answers
Help please <br><br> an equation where the slope is 5 and y-intercept is 12.
Lilit [14]

Answer:  y = 5x + 12

Step-by-step explanation:

y = mx + b, where m is the slope, and b is the y- intercept, then we plug in:

y = 5x + 12

7 0
3 years ago
Can y’all help me with this plz
N76 [4]
The first one is cost of jam $4, cost of soup $7
4 0
3 years ago
NEED ASAP Which line is parallel to the line y=4x-2?
Umnica [9.8K]

Answer:

y = 4x + 1

Step-by-step explanation:

Given the equation y = 4x - 2, we need to find the equation parallel to this line. Note that for two equations to be parallel to each other, the must have the same slope

Standard form of an equation is y = mx + b

Compare;

mx = 4x

m = 4

Since the slope of the given equation is 4, the required equation must also have a slope of 4

Since we are not given an option, we can assume any equation with a slope of 4

y = 4x + 1 will be parallel to the given equation since they both have the same slope

<em>Note that the equation can be different so far they have the slope of 4</em>

8 0
3 years ago
Y = 5x^2 - 10<br> what is the rate of change ?<br> is the function linear or non linear ? why ?
Svetlanka [38]

Answer:

Step-by-step explanation:

Are you in Calculus?  These are calculus concepts!

To calculate the rate of change here you must specify an interval, e. g., "what is the rate of change on the interval (0, 3)?"

If you know calculus:  The 'rate of change' on the interval (a, b) is

                f(b) - f(a)

r. of c. = --------------------

                    b - a

Have you used this formula before?

Because of the 'x^2' term this is NOT a linear function.

If you want more explanation, provide an interval on which you want the average rate of change and ask specific questions of your own.

6 0
3 years ago
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