Write about a real-world situation that can be represented by the equation y=4x

Mathematics

1 answer:

n200080 [17]3 years ago

6 0

For every apple you sell, you earn 4 bucks. y is the number of apples, 4 is the constant price

i know this is a lame example, so sorry....

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3 years ago

A number n plus 8 is greater than 11? What is the inequality and the solution?

fomenos

Answer:

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3 years ago

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Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning.

Alborosie

Assume that the rule connecting height of the candle to time is a linear one. If you do, then we have to find the equation of this line, and then use this equation to predict the height of the candle after 11 hours.

Two points on this line are (6,17.4) and (23, 7.2). The slope is thus
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Find the equation of the line. I'm going to use the slope-intercept formula:

y = mx + b => 7.2 = (-3/5)(23) + b. Solving for b, b = 21.

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Let x=11 to predict the height of the candle at that time.

y = (-3/5)(11) + 21 = 14.4 inches (answer)

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3 years ago

Evaluate 8-2.<br>A. -16<br>B. -64<br>C. -1/64<br>D. 1/64<br>

makvit [3.9K]

I'm assuming you meant to write 8^(-2) or $8^{-2}$ where the -2 is the exponent over the 8.