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sleet_krkn [62]
3 years ago
13

HEY GUYS PLEASE HELP ME ANYONE I MEAN ANYONE WHOO EXPLAINS WELL AND NOT FOR THE POINTS WILL BE MARKED AS BRAINLIEST .SOLVE EACH

SYSTEM BY SUBSTITUTION SO WE HAVE -4X+6Y=12
X+2Y=-10 SO FAR I GOT -14Y=52 DONT GET ME WONG I KNOW HOW TO SOLVE IT BUT SINCE 14 GOES INTO 52 3 TIMES DO I THEN HAVE TO PLUG IN FOR Y
Mathematics
1 answer:
cupoosta [38]3 years ago
5 0
-4x + 6y = 12
x + 2y = -10

First solve for x in the second equation

x + 2y = -10
x = -10 - 2y

Now we have a value for x so we can substitute it into the other equation

-4 (-10 - 2y) + 6y = 12

Now solve for y

40 + 8y + 6y = 12
40 + 14y = 12
14y = -28
y = -2

Now we have a value for y that we can plug into one of the original equations so we can solve for x

x + 2y = -10
x + 2(-2) = -10
x - 4 = -10
x = -6

Your solution set is

(-6, -2)
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abruzzese [7]

The number of items picked and left are illustrations of a linear equation

The equation that represents the scenario is y = 2x - 3

<h3>How to determine the equation</h3>

Represent the number of items remaining with y, and the number of steps with x

So, each step;

The number of items with you is 2x

When you left 3 items, the expression becomes 2x - 3

Hence, the equation that represents the scenario is y = 2x - 3

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8 0
2 years ago
Does the Commutative Property of Addition apply when you add two negative integers?
MAVERICK [17]

The commutative property of addition means we can add two integers in any order. So yes, It would still apply to two negative integers (for example, -2 + -3 and -3 + -2 both equal five)

4 0
4 years ago
Ethan bought 3 pints of raspberries for $5 per pint and x pints of blueberries for $3 per pint. The average
bagirrra123 [75]

The y-intercept represents the average cost, in dollars per pint, of all the raspberries Ethan bought. Therefore, option B is the correct answer.

Given that, Ethan bought 3 pints of raspberries for $5 per pint and x pints of blueberries for $3 per pint.

The average is (15 + 3x)/(3+x) per pint.

We need to find what quantity will be represented by the y-intercept of the graph.

<h3>How to find the y-intercept of the graph?</h3>

Since the y-intercept always has a corresponding x-value of 0, replace x with 0 in the equation and solve for y. On a graph, the y-intercept can be found by finding the value of y when x=0. This is the point at which the graph crosses through the y-axis.

Now, the graph of y=(15 + 3x)/(3+x)is given below.

To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.

x-intercept(s): (−5,0)

y-intercept(s): (0,5)

So, the y-intercept represents the average cost, in dollars per pint, of all the raspberries Ethan bought.

Therefore, option B is the correct answer.

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7 0
1 year ago
The sum<br> of two numbers is 72. The difference is<br> 22. Find the two numbers.
kotegsom [21]

Answer:

b= 25

Step-by-step explanation:

a+b =72

a-b = 22

2a = 94

DBS(Divide Both Side) by 2

a = 47

=47 +b =72

and:

47 -b =22

subtract 47 from both sides:

b=25

and

-b = -25 MBS(Multiply Both Side) by-1 ....>b=25

5 0
3 years ago
2y - 6 = -6x, solve for y (must be in form y = mx + b)
nalin [4]

Answer:

y=-3x+3

Step-by-step explanation:

hope this helps :)

7 0
3 years ago
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