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Kruka [31]
3 years ago
8

If a sample of 80 students, 52 say that they will attend the dance, predict the number of students who will attend in a school t

hat has 1,600 students.
Mathematics
1 answer:
olchik [2.2K]3 years ago
3 0

Answer:

1040 students will attend

Step-by-step explanation:

Out of 80 students, 52 will attend

80/52 = 1600/ x

x=1040

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Jobisdone [24]
Add 2 3/4 and 2 1/2 and you’ll get ur answer. area means total and when u see area, it means add
8 0
2 years ago
Graciela was trying to solve the quadratic equation x2+2.5x−1.5=0 "I think I need to use the Quadratic Formula because of the de
drek231 [11]

Answer:

The answer to your question is  x² + 5/2x - 3/2 = 0

Step-by-step explanation:

Data

Quadratic equation           x² + 2.5x - 1.5 = 0

Process

1.- Convert the decimals into fractions

2.5 = 25/10 = 5/2

1.5 = 15/10 = 3/2

2.- Substitution

                                       x² + 5/2x - 3/2 = 0

3.- Conclusion

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7 0
3 years ago
A rectangular room is 1.5 times as long as it is wide, and its perimeter is30 meters. find the dimension of the room.
Tpy6a [65]

Answer:

6 meters by 9 meters

Step-by-step explanation:

<u><em>Step 1: Formula for perimeter of rectangle</em></u>

Rectangle's perimeter = 2 (length) + 2 (width)

Rectangle's perimeter = 2 (length + width)

<u><em>Step 2: Find the length and width in terms of x</em></u>

Width = x

Length = 1.5 times width

Length = 1.5x

<u><em>Step 3: Find x</em></u>

Perimeter = 2(length + width)

30 = 2 (1.5x + x)

30/2 = 2.5x

15/2.5 = x

x = 6

<u><em>Step 4: Find the length and width</em></u>

Width = x = 6 meters

Length = 1.5x = 1.5(6) = 9 meters

Therefore, the dimensions of the room are 6 meters and 9 meters.

6 0
2 years ago
Why is rounding important?
Alik [6]

Answer:

C

Step-by-step explanation:

Rounding can make a long number that might be confusing short and easy to understand. D sounds like the right answer but actually rounding isn't the most accurate. Using a fraction is.

7 0
2 years ago
What do the following two equations represent?
Dima020 [189]

Answer:

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6 0
3 years ago
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