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SIZIF [17.4K]
3 years ago
13

3

Mathematics
2 answers:
Sedaia [141]3 years ago
7 0

21 students; 3/4 ; Possible explanation: 75% corresponds to 21 students.

So, 21 students met their reading goal. The fraction 75/100 represents 75%.

Therefore, 75/100, or 3/4, of 28 students met their reading goal.

Please mark Brainliest!

laila [671]3 years ago
3 0

Answer:

Step-by-step explanation:

Number of students who met their reading goal = 75% of 28

=\frac{75}{100}*28=\frac{3}{4}*28\\\\=3*7=21

Fraction: 21 students out of 28 met their reading goal

so,

\frac{21}{28}=\frac{3}{4}

3/4students met their reading goal

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Algebra 1. please help me. i’m literally struggling , i’ll give an extra 50 points if it’s right and brainliest. - question in p
Arada [10]

Answer:

15x² - 3x - 7

Step-by-step explanation:

(12x² + 2x) - (-3x²+ 5x + 7)

First open the parentheses by applying the distributive property.

To do this, multiply each term you have inside (-3x⅔ + 5x + 7) by -1.

Thus, you would have the following:

12x² + 2x + 3x² - 5x - 7

Add like terms

12x² + 3x² + 2x - 5x - 7

15x² - 3x - 7

6 0
2 years ago
Can yall help me with this
Dmitriy789 [7]

Answer:

3x^2 - 16x + 12

x^2 + 9

6 0
3 years ago
A diagram of Eric pool as shown below. He plans to fill this pool to a depth of 4ft with a garden hose that flows at 80ft expone
Alex777 [14]
<span>The Volume of a Cylinder  =   </span><span>π <span>• r² • height<span>
</span></span></span>radius = 13.5 feet
volume = PI * 13.5^2 * 4 feet (the problem states it is to be filled to a depth of 4 feet)
volume = PI * 182.25 * 4
volume = <span> <span> <span> 2,290 cubic feet</span></span></span>
The hose delivers 80 <span>cubic feet per hour so it will take:
</span>2,290 / 80 = <span> <span> <span> 28.625 </span> </span> </span> hours
**************************************************************************
The volume of the pool is:
volume = PI * 182.25 * 4.5
= <span> <span> <span> 2,576.</span></span></span>5 cubic feet


6 0
3 years ago
All of the functions shown below are either exponential growth or decay functions.
AlekseyPX

Answer:

Step-by-step explanation:

If an exponential function is in the form of y = a(b)ˣ,

a = Initial quantity

b = Growth factor

x = Duration

Condition for exponential growth → b > 1

Condition for exponential decay → 0 < b < 1

Now we ca apply this condition in the given functions,

1). y=3.2(1+0.45)^{2x}

   Here, (1 + 0.45) = 1.45 > 1

   Therefore, It's an exponential growth.

2). y=(0.85)^{3x}

    Here, (0.85) is between 0 and 1,

    Therefore, it's an exponential decay.

3). y = (1 - 0.03)ˣ + 4

    Here, (1 - 0.03) = 0.97

    And 0 < 0.97 < 1

    Therefore, It's an exponential decay.

4). y = 0.5(1.2)ˣ + 2

    Here, 1.2 > 1

    Therefore, it's an exponential growth.

5 0
2 years ago
For brainiest:):):):):):):):)
olga2289 [7]
Here is the answer to ur question :) Hope this helps!

7 0
3 years ago
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