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svlad2 [7]
3 years ago
14

Julius went on a volunteer trip to Central

Mathematics
1 answer:
lana66690 [7]3 years ago
6 0

Answer:

20 bottles

Step-by-step explanation:

10*3+b=50

30+b=50

-30      -30

       b=20

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Help me please!!!!! I don't know this :(
Vsevolod [243]

Answer:

10 30

15 45

so the third one

Step-by-step explanation:

It being multiplied by 3

2x3=6

3x3=9

10x3=30

15x3=45

8 0
3 years ago
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If ava makes $15 in 2 hours, what is her rate of pay?
zalisa [80]

Answer:

$7.50 per hour

Step-by-step explanation:

15/2=7.5

7 0
3 years ago
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The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate
nikdorinn [45]
Log(2)/log(1.064) ≈ 11.17 . . . . hours

_____
The population can be given by
  p(n) = p₀×1.064ⁿ . . . . where n is the number of hours
You want to find n whe p(n) = 2*p₀.
  2p₀ = p₀×1.064ⁿ . . . . . . . . . . . . substitute the given information
  2 = 1.064ⁿ . . . . . . . . . . . . . . . . . divide by p₀
  log(2) = n×log(1.064) . . . . . . . . take logs to make it a linear equation
  log(2)/log(1.064) = n . . . . . . . . divide by the coefficient of n
4 0
3 years ago
How to use Pythagorean theorem to find the right triangle side length
MrRissso [65]

Answer:

You would use a^2 + b^2 = c^2

Step-by-step explanation:

a and b are the shorter side of the triangle whereas c is the hypotenuse or longest side of the triangle

5 0
4 years ago
.21 of what number is 7.98
AlladinOne [14]
.21 as a percentage is 21%
You can divide 7.98 by 21 then multiply by 100 which gives you an answer of 38.

Hope this helps :)
8 0
3 years ago
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