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mr Goodwill [35]
3 years ago
13

Joes, who is the youngest member of the wrestling team at Northwood High school, is 5 years less than one-half the age of the co

ach. If the coach is n years old, which expression describes joe's age
Mathematics
1 answer:
Savatey [412]3 years ago
5 0

1/2 n - 5 or (n/2) - 5

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Find the solutions to 9x^2-54x=0
astra-53 [7]

Answer:

x₁ = 0

x₂ = 6

Step-by-step explanation:

9x² - 54x = 0

9x(x - 6) = 0

x(x - 6) = 0

x = 0

x - 6 = 0 → x = 6

Hope this helps! :)

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im not sure but maybe C

Step-by-step explanation:

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What is the value of x?
dezoksy [38]
X is equal to 1

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3 years ago
How to find compound rate from given values, 10 years after, and initial
dybincka [34]

The formula that calculates the compound rate from the given values is r = n(-1 + \sqrt[10n]{\frac{P + I}{P}})

<h3>How to determine the compound interest rate?</h3>

The compound interest formula is:

I = P(1 + \frac rn)^{nt} - P

Where:

  • P represents the principal amount
  • r represents the compound interest rate
  • n represents the number of times the interest is compounded
  • t represents the time in years
  • I represents the interest

We start by adding P to both sides

P + I = P(1 + \frac rn)^{nt}

Divide through by P

\frac{P + I}{P} = (1 + \frac rn)^{nt}

Take the nt-th root of both sides

\sqrt[nt]{\frac{P + I}{P}} = 1 + \frac rn

Subtract 1 from both sides

-1 + \sqrt[nt]{\frac{P + I}{P}} = \frac rn

Multiply through by n

r = n(-1 + \sqrt[nt]{\frac{P + I}{P}})

In this case, t = 10

So, we have:

r = n(-1 + \sqrt[10n]{\frac{P + I}{P}})

Hence, the formula that calculates the compound rate is r = n(-1 + \sqrt[10n]{\frac{P + I}{P}})

Read more about compound interest at:

brainly.com/question/13155407

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3 0
2 years ago
Can anyone explain the method for algebraic fraction? We have to do it for maths, and i'm really struggling with it. Here is an
riadik2000 [5.3K]

Answer:

x=3

Step-by-step explanation:

The approach is not very different from regular fractions.

You have to get to a common denominator to be able to add them.

10 is a good denominator (multiply the denominators).

multiply the first term by 5, and the second one by 2:

\frac{5 \cdot (x+1)}{5 \cdot 2} + \frac{2 \cdot (x+2)}{2 \cdot 5}  = 3

\frac{5x+5 + 2x+4}{10} = 3

\frac{7x+9}{10} = 3

7x + 9 = 30

7x = 30 - 9

x = 3

let me know if you need more details on one of the steps

3 0
2 years ago
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