1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nataly [62]
3 years ago
15

A percent is the result of a number being expressed as a fraction

Mathematics
2 answers:
Ivan3 years ago
8 0
If it is a true or false question I believe its true.
bezimeni [28]3 years ago
7 0
Is this a true or false question?
You might be interested in
MCR3U1 Culminating 2021.pdf
11111nata11111 [884]

Answer:

(a) y = 350,000 \times (1 + 0.07132)^t

(b) (i) The population after 8 hours is 607,325

(ii) The population after 24 hours is 1,828,643

(c) The rate of increase of the population as a percentage per hour is 7.132%

(d) The doubling time of the population is approximately, 10.06 hours

Step-by-step explanation:

(a) The initial population of the bacteria, y₁ = a = 350,000

The time the colony grows, t = 12 hours

The final population of bacteria in the colony, y₂ = 800,000

The exponential growth model, can be written as follows;

y = a \cdot (1 + r)^t

Plugging in the values, we get;

800,000 = 350,000 \times (1 + r)^{12}

Therefore;

(1 + r)¹² = 800,000/350,000 = 16/7

12·㏑(1 + r) = ㏑(16/7)

㏑(1 + r) = (㏑(16/7))/12

r = e^((㏑(16/7))/12) - 1 ≈ 0.07132

The  model is therefore;

y = 350,000 \times (1 + 0.07132)^t

(b) (i) The population after 8 hours is given as follows;

y = 350,000 × (1 + 0.07132)⁸ ≈ 607,325.82

By rounding down, we have;

The population after 8 hours, y = 607,325

(ii) The population after 24 hours is given as follows;

y = 350,000 × (1 + 0.07132)²⁴ ≈ 1,828,643.92571

By rounding down, we have;

The population after 24 hours, y = 1,828,643

(c) The rate of increase of the population as a percentage per hour =  r × 100

∴   The rate of increase of the population as a percentage = 0.07132 × 100 = 7.132%

(d) The doubling time of the population is the time it takes the population to double, which is given as follows;

Initial population = y

Final population = 2·y

The doubling time of the population is therefore;

2 \cdot y = y \times (1 + 0.07132)^t

Therefore, we have;

2·y/y =2 = (1 + 0.07132)^t

t = ln2/(ln(1 + 0.07132)) ≈ 10.06

The doubling time of the population is approximately, 10.06 hours.

8 0
3 years ago
I'm confused. Hopefully, you can help me.
valkas [14]

Answer:

C

Step-by-step explanation:

a straight line is 180, 180-40=140

4 0
3 years ago
Read 2 more answers
Write as a decimal number.<br> 9-10
Ad libitum [116K]

Answer:

.9

Step-by-step explanation:

9 divided by 10

8 0
3 years ago
Lori entered a 100 km race. A Kilometer is about of a mile. About how many miles ling is the race?
djverab [1.8K]

Answer:

About 62.1371

Step-by-step explanation:

6 0
3 years ago
Factor completely x2 − 49. (1 point) (x − 7)(x − 7) (x + 7)(x − 7) (x + 7)(x + 7) Prime
Sever21 [200]

Answer:

(x + 7)(x - 7)

8 0
3 years ago
Other questions:
  • I need a answer AS SOON AS POSSIBLE.. thank you :}
    10·2 answers
  • The test scores for last week's History test were: 76, 100, 94, 90, 68, 90, 80, 92, 84 If test scores of 60 and 68 are added to
    9·2 answers
  • Is how much did a tree grow in one year a statistical question
    6·2 answers
  • A cylinder have a radius of 10 and a height of 8 what is the exact volume of the cylinder
    14·2 answers
  • Please help me out with the problem on the picture!
    9·1 answer
  • How are the solution sets to s&lt;3 and |s|&lt;3 different ?
    11·1 answer
  • What is answer least to greatest?
    6·1 answer
  • Luke cut down a tree that was 26.4 feet tall. Then he cut the tree into 6 equal pieces to take it away.
    11·1 answer
  • Helpp!!!<br> prove that:<br> cosecA-cotA= tanA/2
    11·1 answer
  • 2x2x-2x2 what do u get when u add them together and multiply
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!