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Deffense [45]
3 years ago
7

three out of four students in school have a least one sibling. If there are 300 students in your school, how many would have a l

east one sibling ​
Mathematics
1 answer:
ladessa [460]3 years ago
6 0

25 I think....      I am sorry if its wrong                      

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Original price is $16.45, markdown is 33%. The sales price is (only use numbers): $
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$11.02

Step-by-step explanation:

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How do you solve -12n^2-11n=-15<br> Solve for n
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Explanation:

N= 3/4 or n= -5/3
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How many toothpicks are needed to build the tree on day 100?​
Mariana [72]

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Step-by-step explanation:

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3 years ago
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The solid surface area is equal to the solid volume. Find the value of x? The measurements of the rectangular prism is 9 inches
Fudgin [204]

Answer:

x=7.2

Step-by-step explanation:

Let x represent height of the prism.

We know that volume of rectangular is equal to product of its height, width and length.

\text{Surface area of rectangular prism}=2(wl+lh+hw), where w, h and l represents width, length and height respectively.

We have been given that the surface area of rectangular prism is equal to the volume of the prism. So we can set an equation as:

lwh=2(wl+lh+hw)

We are also told that the measurements of the rectangular prism is 9 inches long and 4 inches wide. Upon substituting these values in above equation, we will get:

9\cdot 4\cdot x=2(4\cdot  9+9\cdot x+x\cdot 4)

Let us solve for x.

36x=2(36+9x+4x)  

36x=2(36+13x)

36x=2(36+13x)

36x=72+26x

36x-26x=72+26x-26x

10x=72

x=\frac{72}{10}\\\\x=7.2

Therefore, the value of x is 7.2 inches.

6 0
3 years ago
Write the quadratic equation in standard form:<br> 3x2 – X – 4= -30<br> x
zhuklara [117]

Answer:

3x²-29x+4

Step-by-step explanation:

3x²-x-4=-30x

0=-30x-3x²+x+4

0=-3x²-29x+4

4 0
2 years ago
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