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pentagon [3]
3 years ago
11

What is an expression to represent the equation

Mathematics
1 answer:
Tatiana [17]3 years ago
7 0

Answer:

8 + \frac{x}{4}

Step-by-step explanation:

I'm assuming you want an answer to the top section of the question.

We can start with 8.

    8

When a problem asks for the sum, it's looking for addition, so we use the + sign.

    8 +

The problem says "a number," so let's represent that with x. Basically, x just means a number we don't know.

    8 + x

The "number" is divided by 4, so we'll just put x/4 as our second term.

   8 + \frac{x}{4}

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If a phone plan allows for 698 minutes each month, and Jorge uses 475 minutes by the end of the second week, what percent of his
Juli2301 [7.4K]
Well I'm doing it an easy way but 50% or half of 698 is about 350.

475 is slightly above 350 so the answer would be 68%
5 0
3 years ago
50 POINTS
mamaluj [8]

Answer:

The answer is below

Step-by-step explanation:

The linear model represents the height, f(x), of a water balloon thrown off the roof of a building over time, x, measured in seconds: A linear model with ordered pairs at 0, 60 and 2, 75 and 4, 75 and 6, 40 and 8, 20 and 10, 0 and 12, 0 and 14, 0. The x axis is labeled Time in seconds, and the y axis is labeled Height in feet. Part A: During what interval(s) of the domain is the water balloon's height increasing? (2 points) Part B: During what interval(s) of the domain is the water balloon's height staying the same? (2 points) Part C: During what interval(s) of the domain is the water balloon's height decreasing the fastest? Use complete sentences to support your answer. (3 points) Part D: Use the constraints of the real-world situation to predict the height of the water balloon at 16 seconds.

Answer:

Part A:

Between 0 and 2 seconds, the height of the balloon increases from 60 feet to 75 feet  at a rate of 7.5 ft/s

Part B:

Between 2 and 4 seconds, the height stays constant at 75 feet.

Part C:

Between 4 and 6 seconds, the height of the balloon decreases from 75 feet to 40 feet at a rate of -17.5 ft/s

Between 6 and 8 seconds, the height of the balloon decreases from 40 feet to 20 feet at a rate of -10 ft/s

Between 8 and 10 seconds, the height of the balloon decreases from 20 feet to 0 feet at a rate of -10 ft/s

Hence it fastest decreasing rate is -17.5 ft/s which is between 4 to 6 seconds.

Part D:

From 10 seconds, the balloon is at the ground (0 feet), it continues to remain at 0 feet even at 16 seconds.

3 0
3 years ago
How to prove two equations have infinite solutions?
laiz [17]
To prove two equations have infinite solutions, you have to prove that those two equations are the same equations, but in a different form.

For example: Prove the equations are infinite
5y=2x+7
10y=4x+14
If you multiply the first equation by 2, and substitiute any of the numbers, you will get 0=0
6 0
3 years ago
What happens to the graph of f(x) = 3(.96)when a constant is added
Neko [114]

Answer:

The graph of the function gets vertically shifted upwards by 12 units.

Step-by-step explanation:

8 0
2 years ago
Write an equation in slope-intercept form of the line that is perpendicular to the line represented by 8x-4y+9=0 and passes thro
WARRIOR [948]

Answer:

Step-by-step explanation:

y - 3 = (-1/2)(x - 2)

Solve 8x-4y+9=0 for y so as to find the slope of this given line:

8x + 9 = 4y, or y = 2x + 9/4.  The slope of the given line is 2.  The slope of any line perpendicular to this one is the negative reciprocal of 2, which is -1/2.

Use the point-slope formula:  y - k = m(x - h ).  (h, k) is (2, 3) and m is -1/2.

Then we have:  y - 3 = (-1/2)(x - 2)

4 0
3 years ago
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