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
Ksju [112]
3 years ago
14

2/5 as a decimal and percentage

Mathematics
2 answers:
erastova [34]3 years ago
8 0
2/5 in a decimal form= 0.4

2/5 in a percentage form= 40%

Hope this Helps!
Agata [3.3K]3 years ago
4 0
As decimal... .4
and as percent..... 2/5×100=40℅
You might be interested in
Can you help with these two questions?
Lady bird [3.3K]

1) 155.91 grams would be left after 10 years

2) The population would be 376,478 in 2040

Step-by-step explanation:

The form of the exponential function is y=a(b)^{x} , where

  • a is the initial amount (y at x = 0)
  • b is the growth/decay factor
  • b = 1 + r, where r is the rate of growth
  • b = 1 - r, where r is the rate of decay

1)

Scientists are studying a 500 grams sample of a radioactive element, which has an annual decay rate of 11%

∵ The initial amount is 500 grams

∴ a = 500

∵ The annual decay rate is 11%

∴ r = 11% = 11 ÷ 100 = 0.11

∵ b = 1 - r ⇒ decay

∴ b = 1 - 0.11 = 0.89

- We need to find how many grams of the sample would be left

  after 10 years

∴ x = 10

- Substitute all of these values in the form of the exponential function

∵ y=500(0.89)^{10}

∴ y = 155.9085996

- Round it to 2 decimal places

∴ y = 155.91

155.91 grams would be left after 10 years

2)

In 2000, the population of an Ohio town was 140,212. The population is expected to grow at a rate of 2.5% each year

∵ The population of an Ohio town was 140,212

∴ a = 140.212

∵ The population is expected to grow at a rate of 2.5% each year

∴ r = 2.5% = 2.5 ÷ 100 = 0.025

∵ b = 1 + r ⇒ growth

∴ b = 1 + 0.025 = 1.025

- We need to find the population in 2040

∵ The number of years is 2040 - 2000 = 40 years

∴ x = 40

- Substitute all of these values in the form of the exponential function

∵ y=140212(1.025)^{40}

∴ y = 376478.1709

- Round it to the nearest whole number

∴ y = 376,478

The population would be 376,478 in 2040

Learn more:

You can learn more about the functions in brainly.com/question/11921476

#LearnwithBrainly

6 0
3 years ago
Sam has two coupons for a bicycle. coupon A: $20 rebate on a $95 bicycle. coupon B: 25% off a $95 bicycle. choose the coupon tha
ANTONII [103]

Answer:

B

Step-by-step explanation:

5 0
3 years ago
Plz help me with this
8090 [49]

Answer:

8.216 put a line on top of the six because it's repeating

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which is the best description for this graph? <br> Someone Please help me :)
wlad13 [49]
The answer would be the second one, the graph is decreasing everywhere
4 0
3 years ago
Read 2 more answers
The congruence theorem that can be used to prove △LON ≅ △LMN is SSS. ASA. SAS. HL.
Zinaida [17]

Answer:

The correct option is SSS (Side-Side-Side) Theorem

Step-by-step explanation:

The question is incomplete because the diagrams of ΔLON and ΔLMN are not given. I have attached the diagram of both triangles below for better understanding of the question.

Consider the diagram attached below. We have to find the congruence theorem which can be used to prove that ΔLON ≅ ΔLMN

We can see in the diagram that both triangle have a common side that is LN. It means 1 side of both triangles is congruent because LN≅LN

Consider the sides ON and MN. Both side have a single bar on them, which means that it is given that both of these side are congruent. Hence ON≅MN

Consider the sides LO and LM. Both side have a double bars on them, which means that it is given that both of these side are also congruent. Hence LO≅LM

SSS theorem states that if all sides of the triangles are congruent, then the triangles themselves are also congruent, which is the same case in this question

4 0
3 years ago
Read 2 more answers
Other questions:
  • Whats the answer to 3x + 4 = 7x + 8
    15·2 answers
  • Is 3/8 greater than 1/2
    10·2 answers
  • How to solve this 25 points!!!
    11·1 answer
  • X<br> 451<br> 412<br> 451<br> Find the value of x.<br> A. 42<br> 2<br> B. 4<br> C. 43<br> D. 43
    7·1 answer
  • Please click the picture and answer the questions
    14·1 answer
  • Five times a number is 30?
    12·2 answers
  • So. This question is very troubling. It’s
    14·1 answer
  • I need help please! In each case below, list the lettered measures for angles or sides in descending order (FROM GREATEST TO LEA
    5·1 answer
  • A solid toy is in the form of a hemisphere surmounted by a right circular cone. The height of the cone is 4 cm and diameter of t
    14·1 answer
  • What is the equation of the line through (-2, 5) and (0, 3)? A. y = x - 3 B. y=x+3 C. y = -x + 3 D. y=-x-3​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!