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Please answer number 2 thank you

Wage = 7x,x ∈ [0,1,2,3,4]

Statements such as these can be converted into a mathematical language which is known as equations that can help us solve for the unknown. In this question, we need to find the wages for Charles who babysits. We have been given some statements which need to be translated into mathematical equations.

A typical equation has two sides, a right-hand side, and a left-hand side.

Let the total wage be given by  Wage  and the total number of hours worked to be given by  x  Thus, we can denote the function in functional notation as

Wage = 7x,x ∈ [0,1,2,3,4]

Wage = 7(4),4 ∈ [0,1,2,3,4] The symbol ∈ indicates set membership and means “is an element of”

Wage = 7(4),4 is an element/set of [0,1,2,3,4]

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1

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step-by-step explanation: