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Georgia [21]
2 years ago
10

10 is 25% of what number?

Mathematics
2 answers:
Zanzabum2 years ago
8 0

Answer:

40

Step-by-step explanation:

25%= \frac{1}{4}

10×4=40

Novay_Z [31]2 years ago
5 0

Answer:

40

Step-by-step explanation:

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What is 5% added to $194?
leva [86]

Answer:

203.7

Step-by-step explanation:

5% of 194 added to 194 =

= 5% * 194 + 194

= 0.05 * 194 + 194

= 9.7 + 194

= 203.7

6 0
3 years ago
Three times the difference between 4 times h and five is 45
Anestetic [448]

3(4h-5) =45

12h-15=45

+15 +15

12h = 60

÷12 ÷12

h = 5

5 0
3 years ago
Please answer this math problem sceenshot below
nataly862011 [7]

Answer:

3 and 4 it is 60

is the answer

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3 0
2 years ago
Read 2 more answers
A bacteria culture initially contains 100 cells and grows at a rate proportional to its size. After an hour the population has i
goldfiish [28.3K]

Answer:

  • P(t) = 100·2.3^t
  • 529 after 2 hours
  • 441 per hour, rate of growth at 2 hours
  • 5.5 hours to reach 10,000

Step-by-step explanation:

It often works well to write an exponential expression as ...

   value = (initial value)×(growth factor)^(t/(growth period))

(a) Here, the growth factor for the bacteria is given as 230/100 = 2.3 in a period of 1 hour. The initial number is 100, so we can write the pupulation function as ...

  P(t) = 100·2.3^t

__

(b) P(2) = 100·2.3^2 = 529 . . . number after 2 hours

__

(c) P'(t) = ln(2.3)P(t) ≈ 83.2909·2.3^t

  P'(2) = 83.2909·2.3^2 ≈ 441 . . . bacteria per hour

__

(d) We want to find t such that ...

  P(t) = 10000

  100·2.3^t = 10000 . . . substitute for P(t)

  2.3^t = 100 . . . . . . . . divide by 100

  t·log(2.3) = log(100)

  t = 2/log(2.3) ≈ 5.5 . . . hours until the population reaches 10,000

6 0
3 years ago
A cellular phone company monitors monthly phone usage. The following data represent the monthly phone use in minutes of one part
vovikov84 [41]
The answer is 325 517 424 395 494
4 0
3 years ago
Read 2 more answers
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