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Naya [18.7K]
3 years ago
14

What is an equal expression for 8(5m+5n-1) ?? Please and Thank you

Mathematics
1 answer:
ddd [48]3 years ago
4 0
The equal expression is 40m+40n-8
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A grocery store sells an 18 ounce container of peanut butter for $3.28. What is the cost per ounce (unit price)?
AnnyKZ [126]
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cost of 18 ounce container of peanut butter = $3.28
cost of 1 ounce container of peanut butter = $3.28/18
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Simplify.<br> 2a4b5c(4a4bc3)
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Step-by-step explanation:

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I NEED HELP!!!!!!!!!!!!!
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Answer:

c+d

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c as the liters of water in the bucket, and d as the liters of water the jar more.

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Find x<br> Solve the simultaneous equations<br> 3x + 2y = 27<br> 3x – y=9
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I think it is this because it seems as if It is 2 separate equations.

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Exponential growth can anyone give the answers to me? I’m completely lost!
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Answer:

Q1

<u>The exponential growth model for frogs:</u>

  • F(x) = 100(1.22)ˣ,

F- number of frogs, x- number of years, 1.22 - growth factor

<u>Calculations</u>:

  • F(5) = 100(1.22)⁵ = 270
  • a) F(10) = 100(1.22)¹⁰ = 730
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<em>All numbers rounded </em>

Q2

<u>The exponential growth model for bacteria:</u>

  • B(x) = 10(1.8)ˣ

B- number of bacteria, x- number of hours, 1.8 - growth factor

<u>Calculations:</u>

  • a) B(5) = 10(1.8)⁵ = 189
  • b) B(24) = 10(1.8)²⁴ = 13382588
  • c) B(168) = 10(1.8)¹⁶⁸ = 7.68 * 10⁴³

<em>All numbers rounded </em>

Q3.

<u>The exponential growth model for fish:</u>

  • F(x) = 821(1.02)ˣ,

F- number of fish, x- number of months, 1.02 - growth factor

<u>Calculations:</u>

  • a) F(12) = 821(1.02)¹² = 1041
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<em>All numbers rounded </em>

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