What is the smallest number which is reversed when 2 is added to its double?

Answers

Answer 1

Answer:

25

Step-by-step explanation:

Let the number be 10x+y.

So we have 2(10x+y)+2 = 10y+x, or

20x + 2y + 2 = 10y+x, or

19x=8y-2 …(1)

Try different values of x which satisfy (1) giving an integer value of y. Moreover x should be less than y. The only value of x is 2 which gives us y = 5.

So y = 5 and x = 2.

And the answer is 25.

We can prove this by simply doing the question's equation:

50(since it's the double of 25) + 2 =

50+2= 52

Hope this helps


Related Questions

What is the next fraction in this sequence? Simplify your answer 1/52 1/26 1/13 2/13

Answers

Answer:

4/13

Step-by-step explanation:

The pattern is that every number is multiplied by 2 starting at 1/52. To find the next fraction in the sequence, multiply 2/13 by 2:

[tex]\frac{2}{13} (\frac{2}{1} )=\frac{4}{13}[/tex]

4/13 is our final simplified answer

I hope this helps!

If prices increase at a monthly rate of 0.1%, by what percentage do they increase in a year?

Answers

Answer:

Step-by-step explanation:

Since the prices increase at a monthly rate of 0.1% per month. To find the percentage do they increase a year, we need to convert 0.1% to a decimal.

So here how we do it. We put 0.1 percent on the numerator because it a small number which is what we want over 100 like this:

[tex]\frac{0.1}{100}[/tex]

Now when plugging this into your calculator you get:

0.001

.So what do we do with this number?

We now times it by 12 like this:

0.001 x 12 which gives us:

0.012

So we can convert this back to a percentage by moving the decimal by 2 places to the right which gives us 1.2%.

Another way we could of done this without doing the long way to figure it out is by multiplying 0.1 times 12 which still gives us 1.2%

You deposit $1500 in an account earning 3.5% interest compounded monthly.

a. a. How much will you have in the account in 20 years?

b. b. How much interest will you earn?

Answers

Answer:

Answer:

\sf (x+14)^2+(y+5)^2=149(x+14)2+(y+5)2=149

Step-by-step explanation:

Standard equation of a circle:  \sf (x-a)^2+(y-b)^2=r^2(x−a)2+(y−b)2=r2

(where (a, b) is the center and r is the radius of the circle)

Substitute the given center (-14, -5) into the equation:

\sf \implies (x-(-14))^2+(y-(-5))^2=r^2⟹(x−(−14))2+(y−(−5))2=r2

\sf \implies (x+14)^2+(y+5)^2=r^2⟹(x+14)2+(y+5)2=r2

Now substitute the point (-7, 5) into the equation to find r²:

\sf \implies ((-7)+14)^2+(5+5)^2=r^2⟹((−7)+14)2+(5+5)2=r2

\sf \implies (7)^2+(10)^2=r^2⟹(7)2+(10)2=r2

\sf \implies 149=r^2⟹149=r2

Final equation:

\sf (x+14)^2+(y+5)^2=149(x+14)2+(y+5)2=149

9. You roll a standard number cube (with 6 sides) 8 times. The results are 5, 1, 2, 4, 6, 3, 5, 5

a. What is the experimental probability of rolling a 5 on a standard number cube?

b. For 40 rolls of the number cube, predict the number of rolls that will result in a 5 based on your experiment.​

Answers

Answer:

a) we have 5 there 3 times so answer is 3/8

b)

for 8 times rolling 3 times 5 we have

for 40 times rolling will 15 times 5

Step-by-step explanation:

a) we have 5 there 3 times so answer is 3/8

b)

for 8 times rolling 3 times 5 we have

for 40 times rolling will 15 times 5

HELP PLEASE!!!
Worth 1 point
Giving 30!!
PLS HELP
I'LL GIVE BRAINLEIST IF CORRECT!!

Answers

Answer:

^EKF and^HKI

Step-by-step explanation:

Because they are vertically opposite angles

The possible rational roots are ±1, ±3, ±5, ±9, ±15, and ±45.
The actual roots ordered from least to greatest are?

Answers

The actual roots of the function P(x) = x^4 - 4x^3 - 4x^2 + 36x - 45 are its real roots

The actual roots ordered from least to greatest are -3 and 3

How to determine the actual roots?

From the complete question, the polynomial function is:

P(x) = x^4 - 4x^3 - 4x^2 + 36x - 45

Expand the above equation

P(x) = x^4 - 4x^3 + 5x^2 - 9x^2 + 36x - 45

Factorize the equation

P(x) = x^2(x^2 - 4x + 5) - 9(x^2 - 4x + 5)

Factor out x^2 - 4x + 5

P(x) = (x^2- 9)(x^2 - 4x + 5)

Express x^2 - 9 as a difference of two squares

P(x) = (x + 3)(x - 3)(x^2 - 4x + 5)

The expression (x^2 - 4x + 5) cannot be factorized.

So, we have:

P(x) = (x + 3)(x -3)

Equate to 0

(x + 3)(x -3) = 0

Expand

x + 3 = 0 or x - 3 = 0

Solve for x

x = -3 or x = 3

Hence, the actual roots ordered from least to greatest are -3 and 3

Read more about polynomial functions at:

https://brainly.com/question/2833285

Answer:

answer in picture

Step-by-step explanation:

Please help me

10 points

Answers

answer:

127.2345in²

explanation:

attached

--

if this helped, please consider giving brainliest !

Need Help Confused give explanation please and thanks

Answers

I hope you find it useful:)

Which is greater -8.5 or -15

Answers

-8.5 is greater than -15

Answer:

-8.5

Step-by-step explanation:

this is because the more negative a number is, the less value it is, hence -8.5 is greater than -15.


Approximately how many
years would it take for an
investment of $1,000 to grow
to $1,500 with a simple
interest rate of 8%?

Answers

Answer:

6.25 years

(6 years 3 months)

Step-by-step explanation:

Simple interest formula

A = P(1 + rt)

where:

A = final amountP = principalr = interest rate (in decimal form)t = time (in years)

Given:

A = $1,500P = $1,000r = 8% = 0.08

Substitute given values into the formula and solve for t:

⇒ 1500 = 1000(1 + 0.08t)

⇒ 1500 = 1000 + 80t

⇒ 500 = 80t

⇒ t = 6.25 years

a tree diagram represents an experiment consisting of two trails.

P(A and D) = [?]

Answers

Answer:

0.3

Step-by-step explanation:

Start at the beginning, follow the branch to A and then the branch to D (see attached annotated diagram).

When calculating the probability of an event AND another event, multiply the probabilities.

P(A and D) = 0.5 x 0.6 = 0.3

Which point is located at (–0.50, –1.25)?

Point

Answers

Answer:

Hopefully, this helps you!!

:3

Here's a graph!

Have a great day!!

[tex]Sokkachan[/tex]

Answer:

Point W

Step-by-step explanation:

Solve the proportion.
3x/10=3/2

Answers

hello!

In order to solve a proportion, you should cross-multiply:-

[tex]\bf{\displaystyle\frac{3x}{10} =\frac{3}{2}}[/tex]

Multiply 3x times 2 and 10 times 3:-

[tex]\bf{6x=30}[/tex]

Divide both sides by 6:-

[tex]\boxed{\bf{x=5}}[/tex]

note:-

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I'll comment and/or edit my answer :)

There was 1/2. Of a cake left over from Hannah’s birthday party when she and her sister came home from school the next day they ate 2/3 of the left over cake for a snak. How much of the whole cake did the girls eat

Answers

Answer:

1/3

Step-by-step explanation:

This problem would be 1/2 x 2/3. The answer would be 1x2 over 2x3.

What is the equation of the line that passes through the point (3, 5) and has a slope
of -1/3

Answers

Answer:

[tex]Y=-\frac{1}{3} + 6[/tex]

Hope This Helps! :) Please Mark Brainliest!

Find the quotient and the remainder of
64−133+32+3−12
-------------------------------
−2

Answers

Answer:

Below

Step-by-step explanation:

64-133+32+3-12= -46

-46/2= -23

There is no remainder

Assuming that Dave’s marginal tax bracket is 25%, but how much did his federal taxes declined this year if he contribute 7000 to his retirement account?

Answers

The marginal tax bracket of Dave shows that the amount of the federal tax is $28000.

How to compute the tax?

Let the federal tax be represented by x.

From the information, Dave’s marginal tax bracket is 25%, and he contributed 7000.

Based on the information, the amount will be:

25% of x = 7000

0.25 × x = 7000

0.25x = 7000

x = 7000/0.25

x = $28000

In conclusion, the amount is $28000.

Learn more about tax on:

https://brainly.com/question/25783927

please help me
and please show good answers ​

Answers

Answer:

1st one is 0.021

2nd one is 0.009

the last question is 0.015 tho

Answer:

for the first one it will be 0.021

the second one it's 0.009

and for the third one it will be 0.015

Felix buys five vests for $22 each, three pairs of shoes for $50 each, and six hats for $17 each. What is the mean amount that he spent?

A. $34.62
B. $32.81
C. $25.86
D. $22

Answer: C

Answers

Answer:

$ 25.86 is the answer

Step-by-step explanation:

Please help me thank u!

Answers

Answer:

The odds of drawing a heart are 13:52

Explanation: A standard deck of card contains 52 card. There are 4 types of playing cards: clubs, diamonds, hearts and spades. Every type of them has 13 cards. How do u know that? Well just divide 52 by 4 and then you get 13.

On Tuesday, recess began at 11:43. The students got back to their class at 12:04. How long were they at
recess?

Answers

Answer:

They were out side for 21 minutes

Step-by-step explanation:

you just add 11:43 and add 21 minutes  to it and you get 12:04


The average weight of an adult black bear is 4.35 x102 pounds.
This is 15 times as much as Shaneen's dog weighs.
What is the weight of Shaneen's dog?

Answers

Answer: B (2.9 x 10)

Step-by-step explanation: (4.35 x 10^2)/15 = 29 = 2.9 x 10

Which function is the inverse of f(x) = -5x -4?

Answers

Answer:

f−1(x)=x5+45

Step-by-step explanation:

Sample question.....asajs

Answers

Answer:

Bob

Step-by-step explanation:

Answer:

..............................

If Jo's misc. expenses rise by 1/3 and she starts paying for a phone that is $49 per month, how much less will she have towards next years holiday it all other expenses and her wage and bonus stay the same?​

Answers

The amount that Jo will have less towards next years holiday, if all other expenses, wage and bonus stay the same is $146.88.

Original payment for the phone

The initial amout that Jo paid for the phone is calculated as follows;

amount per month = ($49) / (1 + ¹/₃)

amount per month = ($49) / (1.333)

amount per month = $36.76

For 1 year (12 months), = $36.76 x 12 = $441.12

Amount paid now

$49 x 12 = $588

Amount she will have less towards next year

= $588 -  $441.12

= $146.88

Thus, the amount that Jo will have less towards next years holiday, if all other expenses, wage and bonus stay the same is $146.88.

Learn more about amount here: https://brainly.com/question/25109150

Estimate how many times larger 5x10^8 is than 24x10^6?
A) 10 times larger
B) 20 times larger
C) 50 times larger
D) 100 times larger

Answers

Answer:

20times bc u times 5 by 10 then divide 8 u get 6.2

0.6 × 0.8 = ___ I need help with this question KNOW!!!!!!

Answers

ANSWER = 0.48

HOPE IT HELPS :)

Answer: 0.48

Step-by-step explanation:

6 x 8 = 48

we add those decimals back in which would be 0.48

Solve the following expression when
p = 15

P + 4
_
3

Answers

Answer:

49/3 or 16.33...

Step-by-step explanation:

15 + 4/3.

15/1 + 4/3

45/3 + 4/3.

ANSWER: 49/3

a cart is pushed 40 meters against 45 newtons of friction = how much work done

Answers

Answer:

-1.8 kJ

Step-by-step explanation:

Given

Displacement = 40 metersForce against = 45 N

Solving

W = F x SW = - 45 x 40W = -1800 J = -1.8 kJ

Answer:

2250 J

Step-by-step explanation:

Work done is given by the formula :

work done = force × distance

Substituting values given gives us:

Work done = 45 × 40

Work done = 2250 J

(I.5)
Write the sentence as an equation.

148 is equal to 12 minus z


Type a slash ( / ) if you want to use a division sign.

Answers

Answer:

the verbal sentence so it is easier to translate. ... 12 equals p divided by. 4 n. 2. +. 12. = p. ÷. 4. 4. Half of j minus 5 is the sum of k and 13.

Step-by-step explanation:

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