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ValentinkaMS [17]
3 years ago
10

Find x and y in 2x+2y=124x_4y=13

Mathematics
2 answers:
Dmitry_Shevchenko [17]3 years ago
8 0

Answer:

x = 4.625, y = 1.375

Step-by-step explanation:

I am assuming that the second equation is 4x - 4y = 13.

2x+2y=12

4x-4y=13

Multiply first equation by -2:-

-4x - 4y = -24      Add this to the second equation to eliminate x:-

-8y = -11

y = 11/8 = 1.375

Plugging this into the first equation:-

2x + 2(1.375) = 12

2x = 9.25

x = 4.625



dlinn [17]3 years ago
6 0
For the first one the answer is y=-1x+6 which means x=-1 and y=6
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8 of the students are neither japenese or chinese
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4 years ago
Read 2 more answers
What is the slope of y = 1 + 5?
IgorLugansk [536]

Step-by-step explanation:

if there is no typo, then that is

y = 1 + 5 = 6

y = 6

has no term in x.

that means 6 is the constant result of the line function, no matter what x value we pick.

and that means this is a horizontal line (parallel to the x-axis) going through the point y=6 or (0, 6).

remember that the slope is the ratio "y coordinate change / x coordinate change".

but y is not changing at all, the change or difference is always 0 no matter what points we pick on the line.

and so, the slope ratio is always "0/...". and that is 0.

so, the slope of that line is 0.

but if there is a typo, then please know : the slope of a line

y =ax + b

is always a (the factor of x).

6 0
3 years ago
Which of the following is a solution to the equation 2/3x + 16 = -14?
Gala2k [10]
2/3x+16=-14
        -16  -16
2/3x=-30
  *3    *3
2x=-90
 /2    /2
x=-45

Hope this helped :)

7 0
3 years ago
2. Robert has three jobs. He worked at Young's Grocery and earned $5,805. He was a waiter at the A & B Restaurant and earned
antiseptic1488 [7]

Answer:

Robert paid $4,603.6 in Social Security.

Step-by-step explanation:

Robert total earnings:

$5,805 at Young's Grocery.

$12,445 at A&B Restaurant.

$56,002 at CCD Communications.

So his total earnings are of:

5805 + 12445 + 56002 = $74,252

How much did Robert pay in Social Security?

6.2%, that is, 0.062 of $74,252. So

0.062*74252 = $4,603.6

8 0
3 years ago
HELP WILL GIVE BRAINLIST
Step2247 [10]

Answer:

 

Simplify  {4}^{2}42  to  1616.

-16+2\times -4\times -5-2\times {2}^{3}−16+2×−4×−5−2×23

 

Simplify  2\times -42×−4  to  -8−8.

-16-8\times -5-2\times {2}^{3}−16−8×−5−2×23

 

Simplify  8\times -58×−5  to  -40−40.

-16-(-40)-2\times {2}^{3}−16−(−40)−2×23

 

Use Product Rule: {x}^{a}{x}^{b}={x}^{a+b}xaxb=xa+b.

-16-(-40)-{2}^{4}−16−(−40)−24

 

Simplify  {2}^{4}24  to  1616.

-16-(-40)-16−16−(−40)−16

 

Remove parentheses.

-16+40-16−16+40−16

 

Simplify  -16+40−16+40  to  2424.

24-1624−16

 

Simplify.

8

Step-by-step explanation:

hope it helps :)

6 0
3 years ago
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