if a number became 2.5 times smaller, what precent was it decreased by

Answers

Answer 1

Answer:

25 percent because when you change it in percent it came25 percent


Related Questions

solve pls brainliest

Answers

Answer:

Ture

Step-by-step explanation:

.5/.2 = 2.5

1/.4 = 2.5

1.5/.6 = 2.5

The answers are all the same after we divide each x values to the y values.

Hope this is helpful.

Answer:

True

Step-by-step explanation:

.5/.2 = 3.5

1/.4 = 2.5

1.5/.6 = 2.5

the answer is all the same after we devide each x values to the y values.

PLS HELP FOR BRAINLIST :D

Answers

Answer:

The third answer is the correct one.

Which function could be used to represent the sequence 8, 20, 50,

125, 312.5...., given that a, = 8?

(1) a, = 4,- 1 ta

(3) 4, = 4, + 1.5(, -1)

(2) a. = 2.5(

4-1) (4) 4 = (a), -1)

Answers

Answer: a = 2.5 (an-1)

Step-by-step explanation: trust me;)

The function which is used to represent the geometric progression 8, 20, 50, 125, 312.5, ... is [tex]a_{n} = 8(2.5)^{n-1}[/tex].

What is geometric progression?

sequence where each succeeding term is produced by multiplying each preceding term by a fixed number, which is called a common ratio. This progression is as a geometric sequence of  numbers.

Formula for nth term of geometric progression

[tex]a_{n} =ar^{n-1}[/tex]

Where,

[tex]a_{n}[/tex] is the nth term of the sequence or geometric progression

n is the total number of terms

r is the common ratio

and a is the first term

According to the given question

We have

A geometric progression

8, 20, 50, 125, 312.5

Now the common ratio for the above progression is given by

[tex]r = \frac{20}{8} = 2.5[/tex]

And the first term is

a = 8

Therefore, the function which is used to represent the above sequence is given by

[tex]a_{n} = 8(2.5)^{n-1}[/tex]

Hence, the function which is used to represent the geometric progression 8, 20, 50, 125, 312.5, ... is [tex]a_{n} = 8(2.5)^{n-1}[/tex].

Learn more about geometric progression here:

https://brainly.com/question/4853032

#SPJ2

Alexander and his friends are going into a restaurant. How much would it cost to buy 2 hotdogs and 40 chicken wings if each hotdog costs $4.00 and each chicken wing costs $0.50? How much would it cost to buy 22 hotdogs and 4040 chicken wings if each hotdog cost \$h$h and each chicken wing cost \$c?$c?

Answers

2 * 4
$8.00 - hot dogs

40 * 0.50
$20.00 - chicken wings

$28.00 total
4+4= $8 for 2 hotdogs
40 x by .50= $20 for the wings


22x4= $88 for 22 hotdogs
4040x.50= $2020 for 4040 wings

1/2÷1/2÷1/2÷1/2÷1/2÷1/2÷1/2 solve

Answers

Answer:

7

Step-by-step explanation:

I used keep change flip, and repeated the process and got the answer.

Hope this helps! :)

Answer:

1/72

Step-by-step explanation:

1/2÷1/2÷1/2÷1/2÷1/2÷1/2÷1/2

1/2 * 1/2 * 1/2 *1/2 *1/2* 1/2 * 2/1

1/72

I need help in algebra

Answers

Answer: 8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

How to solve

× + 5 = 13

subtract from both sides of the equation.

× + 5 - 5 = 13 - 5

13 - 5= 8

please give me brainliest and a thanks.

Is the following number rational or irrational?
-0.32
Choose 1 answer:
Rational
B
Irrational

Answers

Irrational I think I have to seee and do rmmarj

Find the area of the following shape. please show me your work so i can understand how to do this.

Answers

Answer:

10

Step-by-step explanation:

count the full squares then add up the halfs and u get 10

Express y²-16y+k as a perfect square.​

Answers

Answer:

(y-4)(y+4)

Step-by-step explanation:

When you factor the y^2 you need to factor the rest of your equation. Your K does not exist since it is a perfect square and there is no c. Then you square 16 which is 4 so you have (y-4) (y+4). Hope this helps :)

I GIVE BRANLIEST. Question is on the bottom

Answers

Answer:

432

24*36

---------- = 432

2

Please complete this question,
20 points will be given

Answers

You mean 10 points will be given

All of the following are equivalent, except _____.

3x
2x 2
x(2 + 1)
2x + x

Answers

2x 2 is the answer your looking for,

When there are two variables (letters) you combine them by adding

100 if u get this right ty have a nice day!

Answers

Answer:

9

Step-by-step explanation:

2+4 over 2

x 3

= 9

A science club has a muffin sale. Each bag has 25 muffins. There are 630 muffins to sell. About how many bags of muffins are there?

Answers

Answer: 25.2 or 25

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

because you just devide

HELP!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: 6/5

Step-by-step explanation:

Slope = Rise/ Run

=6/5

Write seven million two thousand five hundred in standard form

Answers

Answer:

Seven million two thousand five hundred in standard form is 7002500

Answer:

Step-by-step explanation:

In words=7,002,500

In standard form:

7.0025×[tex]10^{6}[/tex]

If you need to ask any questions, please let me know.

Which expression is equivalent to 1/2(4x+8)? Answer choices: A. x + 4 B. 2x+4 C. 2x+8 D. 4x+4. Please provide explanation as well!

Answers

Just distribute the 1/2
So it would be 1/2 x 4x = 2x
Then 1/2 x 8 = 4
Combine them: 2x+4

Determine the relationship between the two triangles and whether or not they can be proven to be congruent.

Choices for the first blank :
(SSS)
(SAS)
(AAS)
(ASA)
(AAA)
(SSA)
(HL)

Second blank choices :
Can be proven or cannot be proven congruent

Answers

Answer:

They are congruent by HL

Step-by-step explanation:

Answer:

HL.

Step-by-step explanation:

2 right triangles.

Hypotenuse and 1 leg are congruent.

How to find the mode.

Answers

Step-by-step explanation: The mode is the number that appears most frequently in a data set. If no Number repeats at all, then there is no mode. A data set can also have multiple modes if different numbers repeat the same amount of times.

If Maria designs a function to predict the amount of revenue, r, generated as a function of the number of people, n, who attend a fundraiser, explain why 13.5 would not be a member of this function's domain?

Answers

Answer:

Only whole numbers of people, n, are assumed in the calculation.

Step-by-step explanation:

The function relating the number of people, n, to the revenue, r, implicity assumes that only whole people will purchase tickets.  13.5 would mean that 13 normal people and 1/2 of a person bought tickets.  This can't be in the domain, since the ticket saleperson would run away if 1/2 of a person showed up:  thus no ticket sale.

Actually, it may depend on how one defines a person.  Is it 1/2 physically, or 1/2 mentally?  I've personally seen the latter show up at some fundraisers.

Ed is on a road trip. He has already traveled 229 miles and is driving at a rate of 68 miles per hour. Which equation could be used to find how many hours, x, Ed has left in his road trip if he is traveling 647 total miles?
A.
68x + 647 = 229

B.
229x + 647 = 68

C.
68x + 229 = 647

D.
229x + 68 = 647

Answers

Step-by-step explanation:

THE ANSWER IS D BUT ME 8S NOT SURE

can someone help me?!!! I need help!! ASAP

Answers

Answer:

x=4.6

Step-by-step explanation:

step 1 : calculate angle P since you know 2 angles

Step 2 : 57° - 90° = 180° [interior angles of a triangle ]

Step 3 : x/sin(33°) =7.1/sin(57°)

: x= 7.1Sin(33°)/sin(57°)

: x=4.6

Is (3, 8) a solution to the equation y = 2x - 1? Explain your answer.

Answers

Answer:

No, because 2x3 - 1 =5, which proves it is incorrect

Step-by-step explanation:

Find the 8th term of the geometric sequence whose common ratio is 3/2 and whose first term is 3

Answers

Answer:

51.2578125

Step-by-step explanation:

3 * (3/2)^(8 - 1)

3 *(3/2)^7

51.2578125

can you only give brainliest on your own question?

Answers

Answer:

im sorry i dont know but you can try

Step-by-step explanation:

If a = - 1 and y = 2 what is the value of the expression 2a³ - 3ay?

Answers

Answer:

the valve of the expression would be 184

Step-by-step explanation:

Got it right on edge

Find the distance between the two points in simplest radical form. Please help! <3​

Answers

Answer: on the bottom is (-6,5) and on the top is (1,7)

Step-by-step explanation:

please help me!!!!!!!!

Answers

Answer:

Step-by-step explanation:

Option a,c,e,f,i,j are quadratic equations. (Because its degree is 2)

Option b,d,g are linear equations. (Because its degree is 1)

Just option h is not quadratics nor linear.

If you need to ask any questions, please let me know.

help need it done for tomorrow ​

Answers

Step-by-step explanation:

the law of sines :

a/sin(A) = b/sin(B) = c/sin(C)

with the sides being opposite to the angles.

so,

14/sin(80) = x/sin(60)

x = 14×sin(60)/sin(80) ≈ 12.3cm

6 weeks to 12 days answer?

Answers

Are you looking for a ratio?
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