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valina [46]
4 years ago
14

Debbie is n years old. Shawn is twice as old as Debbie and Edna is 3 years older than Debbie. The expression n + 2n + n + 3 give

s the sum of their ages. Simplify the expression by combining like terms.
Mathematics
1 answer:
ohaa [14]4 years ago
8 0

Answer:

4n + 3

Step-by-step explanation:

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F(2)if f(x)=2x-5 plz answer
Lena [83]

Answer:

-1

you use the given functions to set up and simplify f(2)

7 0
3 years ago
What is the width of the rectangle written as an exponential expression?
Natalka [10]
10m
The process of elimination
7 0
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Please help with this.I need more comparing parts and all of the corresponding parts.
Andrew [12]
Not sure about the statement
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3 0
3 years ago
Write 0.125 as if it was 2 to a power
Westkost [7]

Answer:

2^{-3}

Step-by-step explanation:

0.125 as a fraction is 125/1000 or 1/8

  • 1 is the same as 2^{0} (anything to the power of 0 is 1)
  • 8 is the same as 2³ (2 × 2 × 2 = 8)
  • 2^{0} ÷ 2³ = 2^{-3} (You subtract the powers: 0 - 3 = -3)

Hope this helps!

4 0
3 years ago
what is fourteen less than five times a number is three times the number and what is twelve more than seven times a number equal
andrey2020 [161]
If I am reading the equations correctly, they are:
   5x - 14 = 3x   AND  7x + 12 = x - 6

If this is correct, the first one would be worked out like this:
   5x (- 5x) - 14 = 3x (- 5x)
   - 14 = - 2x
   - 14 (/ - 2) = - 2x (/ - 2)
   7 = x

The second would be worked out like this:
    7x + 12 (+ 6) = x - 6 (+ 6)
    7x + 18 = x
    7x (- 7x) + 18 = x (- 7x)
    18 = - 6x
    18 (/ - 6) = - 6x (/ - 6)
    - 3 = x

I hope this is what you are looking for :)
8 0
4 years ago
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