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3 years ago

Susan is 3 years more than twice her brother’s age. If her brother is m years old, which expression describes Susan’s age?

Mathematics

1 answer:

Arlecino [84]3 years ago

5 0

Answer:

2x+3

Step-by-step explanation:

Since her brother is m years old, you would have to multiply her brother's age by 2 since the question says "...twice here brother's age." This part would equal to the equation 2x. The question also says " ...3 years more..." This would change the equation with the addtion of 3. The completed problem would then be 2x+3. Hope this helped!

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3 years ago

Determine the line that is perpendicular to y = 1/9x - 2/3

ANTONII [103]

Answer:

Step-by-step explanation:

Perpendicular lines have a relationship between their slopes. Their slope are negative inverses of each other. This means is one is 3 then the negative reciprocal is the other or -1/3. The slope here is 1/9 so the perpendicular slope is -9. Slope is always attached to the x term so A is the solution.

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3 years ago

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bixtya [17]

Answer:

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Step-by-step explanation:

We will denote miles as "x"

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We then need to divide both sides by 2.10 to get 21 = x

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3 years ago

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Find the inverse of the function y = 3x + 5 Find the inverse of the function y=3x+5

Viktor [21]

Answer:

First Inverse function= f^-1(x)=x/3-5/3

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Step-by-step explanation:

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2 years ago

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lyudmila [28]

Answer:

first is linear second is quadratic and third looks like linear

Step-by-step explanation:

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