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Brums [2.3K]
3 years ago
6

Duffy completed a 50-meter dash in 36 seconds. That was 90 percent of the time it took Paul to complete it. What was Paul's time

?
42 seconds
38 seconds
40 seconds
36 seconds
Mathematics
1 answer:
salantis [7]3 years ago
5 0

Answer:

40 seconds

Step-by-step explanation

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The water level at a local pier rises and falls with the tide. Yesterday, the maximum depth of the water at the pier was 8 feet,
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Answer: C, Bottom Left

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What is an equation for this line?
Sedbober [7]

Answer:

The equation of the line is y=-x

Step-by-step explanation:

To find the equation for a line, we need to know 2 points.

One of the points is (0,0) because it goes through the origin.  Another point is (5,-5).  We can calculate the slope because we have 2 points using the formula.

m = (y2-y1)/(m2-m1)

m = (-5-0)/(5-0)

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m=-1

The slope is -1

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y = mx+b

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6 0
3 years ago
Carlos is draining an aquarium. The graph shows the amount of water ( in liters) in the aquarium versus time ( in minutes
olya-2409 [2.1K]

Using a linear function, we have that:

a) The amount of water in the aquarium at 0 minutes is of 300 liters.

b) As time increases, the amount of water decreases at a rate of 60 liters per minute.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = ax + b

In which:

  • a is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

In this problem, we have that the y-intercept is of 300, hence the amount of water in the aquarium at 0 minutes is of 300 liters.

The amount <u>decreases 60 liters in a minute,</u> hence:

As time increases, the amount of water decreases at a rate of 60 liters per minute.

More can be learned about linear functions at brainly.com/question/24808124

#SPJ1

6 0
1 year ago
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