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Fudgin [204]
3 years ago
7

Six fewer than a number is 27

Mathematics
1 answer:
barxatty [35]3 years ago
4 0
Six fewer means 6 subtracted from.

So saying that x=unknown number, would be x-6.

Then the “is 27” means that the equation=27.

Your equation is:
x-6=27
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The marching band at parkland high school has 128 students of these 18.75% are ninth graders how many ninth graders are there in
Helen [10]

Hey, Melany. To answer this problem, simply set up a proportion: \frac{18.75}{100} = \frac{x}{128}. Now let's solve for x.

- Cross multiply:\frac{18.75*128}{100*x} --> 2400 = 100x

- Isolate x:

\frac{2400}{100} = \frac{100x}{100}

This means that x = 24.

There are 24 9th graders in the band.


6 0
3 years ago
2x^5-3x^4-5x^3-15x^2-207x+108<br>zeros: 3i<br>find the remaing zeros
Veseljchak [2.6K]
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Alan has to finish an exam within 120 minutes. He finished the exam in 80 minutes. What is the percentage of the time he took fo
drek231 [11]

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Step-by-step explanation:

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7 0
3 years ago
Solve the equation for x, where x is a real number (5 points): <br> -2x^2 + 5x + 2 = -3
Juli2301 [7.4K]
Add 3 to both sides so that the equation becomes -2x^2 + 5x + 5 = 0.
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
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                              x = [ -5 ± √(5^2 - 4(-2)(5)) ] / ( 2(-2) )
                              x = [-5 ± √(25 - (-40) ) ] / ( -4 )
                              x = [-5 ± √(65) ] / ( -4)
                              x = [-5 ± sqrt(65) ] / ( -4 )
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The answers are 5/4 + sqrt(65)/4 and 5/4 - sqrt(65)/4..
5 0
3 years ago
Write a verbal expression for 5x cubed + 2
gladu [14]

Answer:

2 added to cube of 5 times x

Step-by-step explanation:

5 0
3 years ago
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