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Shkiper50 [21]
2 years ago
15

Martin earns $18 dollars an hour. Which of the following inequalities represents the amount of time martin needs to work to earn

at least $78 per day? 18 - t > 78 18+ t < 78 18t > 78 18t < 78
Mathematics
1 answer:
OverLord2011 [107]2 years ago
5 0

Answer:

18t >= 78

Step-by-step explanation:

Not sure if there's an equals sign in the problem that you were given, but there should be. The 18 in the inequality stands for the hourly wage. The t stands for hours worked. 18(wage) x t(hours) has to be greater than or equal to 78 in order for Martin to at LEAST $78 per day. :)

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Answer:

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Step-by-step explanation:

We are asked to find (f+g)(x). The question is essentially asking us to find the sum of f(x) and g(x).

(f+g)(x)=f(x)+g(x)

We know that f(x) equals 3x-1 and g(x) equals x+2. Substitute the values of the functions in.

(f+g)(x)=(3x-1)+(x+2)

Combine the like terms.

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3 years ago
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Answer:

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Step-by-step explanation:

To solve by substitution, we solve one equation for one of its variables and then substitute the solved value for that variable into the other equation. Because this system of equations already has one solved for the variable, this makes our job much easier. We only need to implement the solved value for y into the other equation and solve for x.

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Using this information, the coordinate pair for this equation (the point of intersection between the two lines) is (2, 1).

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Step-by-step explanation:

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