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3 years ago

Solve the simultaneous equationsX + y = 83x - y = 12X =y =

Mathematics

2 answers:

Vadim26 [7]3 years ago

8 0

Answer:

y= -6

x=14

Step-by-step explanation:

in attachment

Pavlova-9 [17]3 years ago

3 0

Answer: (5,3)

Step-by-step explanation:

Solve by Addition/Elimination

x + y = 8

3x − y = 12

Add the two equations together to eliminate y from the system.

x + y = 8

+ 3x −y = 12

4x = 20

Divide each term in 4x = 20 by 4.

4x = 20

4 4

Cancel the common factor of 4.

x= 20/4

x = 5

Substitute the value found for x into one of the original equations to solve for y.

(5) + y = 8

Remove parentheses.

5 + y = 8

Move all terms not containing y to the right side of the equation.

Subtract 5 from both sides of the equation.

y = 8 − 5

Subtract 5 from 8.

y = 3

The solution to the independent system of equations can be represented as a point.

(5, 3)

The result can be shown in multiple forms.

Point Form:

(5, 3)

Equation Form:

x = 5, y = 3

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Hey there :)

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8 0

3 years ago

Marcus monthly salary is $1,500 plus 10% of sales. How much could Marcus earn per month with salary and 9% sales? Please explain

sergejj [24]

If Marcus monthly salary is $1,500 plus 10% of sale, then he could earn 1500 + 0.09x per month with salary and 9% sales

Monthly salary of Marcus = $1500

The percentage incentives for sales = 10%

If the percentage of incentive for sales is 9 %

Consider the amount of sales is $x

Therefore the monthly salary of Marcus = Monthly salary of Marcus + (The amount of sales × 9/100)

Substitute the values in the equation

The monthly salary of Marcus = 1500 + (x×9/100)

Divide the numbers in the equation

= 1500 + (x × 0.09)

Multiply the numbers the numbers

= 1500 + 0.09x

Therefore, the monthly salary of Marcus will be 1500 + 0.09x

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1 year ago

Guys can you please help me I really dont understand algebra?

KonstantinChe [14]

Yes it is linear since it's in the standard form Ax+By = C

A = 2

B = -8

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6 0

3 years ago

Read 2 more answers

I need help with this please

Ierofanga [76]

C is the correct answer

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8 0

3 years ago

Read 2 more answers

A pair of shoes cost $88. You get

Maurinko [17]

Answer:

$77.44

Step-by-step explanation:

If the shoes cost $88 but you get a 20% discount, subtract 20% from 88: -->

$88-20% = $70.4

Then add 8% of 88 to 70.4 -->

8% of $88 = $7.04.

$70.4 + $7.04 = $77.44

Therefore the final price of the shoes are $77.44

Hope this helps!!!~~ <3

7 0

3 years ago

Solve the simultaneous equationsX + y = 83x - y = 12X =y =​

Solve the simultaneous equationsX + y = 83x - y = 12X =y =