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lana66690 [7]
2 years ago
11

There are 48 students in a school play. The ratio of boys to girls is 5 : 7. How many more girls than boys are in the play?

Mathematics
2 answers:
vfiekz [6]2 years ago
7 0

Answer:

8

Step-by-step explanation:

5+7=12

48/12=4

So 1 in this question is 4.

5*4=20

7*4=28

28-20=8

So 8 is the answer.

jok3333 [9.3K]2 years ago
5 0
Answer: 1


5 times 7 equals 35 and 48 divided by 35 equals 1
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laila [671]
C. 502

All you need to do is multiply the number if sales by the percentage in decimal form. Using DPR I know that 11% is equal to 0.11, so 4,560(0.11) is 501.60. That can be rounded to 502 sales that were shirts.

4 0
3 years ago
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th
olchik [2.2K]

Answer:

14.52 seconds.

Step-by-step explanation:

We have been given that the height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation y=-16x^2+224x+121. We are asked to find the time, when the rocket will hit the ground.

We know that the rocket will hit the ground, when height will be 0. So to find the time when rocket will hit the ground, we will substitute y=0 in our given equation as:

0=-16x^2+224x+121

Let us solve for x using quadratic formula.

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

x=\frac{-224\pm\sqrt{224^2-4(-16)(121)}}{2(-16)}

x=\frac{-224\pm\sqrt{50176+7744}}{-32}

x=\frac{-224\pm\sqrt{57920}}{-32}

x=\frac{-224\pm240.66574}{-32}

x=\frac{-224+240.66574}{-32}, x=\frac{-224-240.66574}{-32}

x=\frac{16.66574}{-32}, x=\frac{-464.66574}{-32}

x=-0.520804375, x=14.520804375

Upon rounding to nearest 100th of second, we will get:

x\approx -0.52, x\approx 14.52

Since time cannot be negative, therefore, the rocket will hit the ground after 14.52 seconds.

6 0
3 years ago
Read 2 more answers
Please help asap!!!!!
Morgarella [4.7K]

Answer:

the area = 25

Step-by-step explanation:

a= side length x side length

a = 5 x 5

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8 0
3 years ago
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Help! What is 5(3^3*3^-3) (Use Laws of Exponents)<br> Thanks:)
RideAnS [48]
(3^3)* (3^-3)= 3^0
Remember that if you have the same base, add the exponents.

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Final answer: 5
3 0
3 years ago
The dimensions of the base of Box 1 are x by 3x. The base area of Box 1 is: 3x 3x2 3x3 4x
Lunna [17]
<h3>The base area of box 1 is 3x^2\ square\ units</h3>

<em><u>Solution:</u></em>

Given that,

The dimensions of the base of Box 1 are x by 3x

Length = x

Width = 3x

To find: base area of box 1

<em><u>The base area is given as:</u></em>

base\ area = length \times width\\\\base\ area = x \times 3x\\\\base\ area = 3x^2

Thus base area of box 1 is 3x^2\ square\ units

4 0
3 years ago
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