Mathematics High School

IF YOU CAN GET THIS YOU CAN GET SOME POINTS HURR BRAINLIEST IS WAITING!!!!!

My twin lives at the reverse of my house number. The difference between our house numbers ends in two. What are the lowest possible numbers of our house? MY HOUSE NUBER IS 19

Answers

Answer 1

Answer:

21 or 12

Step-by-step explanation:

Answer 2

Suppose, the number of one of the houses is “xy”, whose numerical value = (10x + y).

So, the number of the other house is “yx”, whose numerical value = (10y + x).

Let, “xy” > “yx”.

Now, difference of house numbers = {(10x + y) - (10y + x)} = {9 * (x - y)}; so the difference is a multiple of 9.

Now, the smallest positive number, divisible by 9, that ends with 2 is 72 = (9 * 8).

So, (x - y) = 8.

Since, 0 ≤ x, y ≤ 9; so, there are two solutions in hand:

I) x = 8, y = 0……………………..this makes the house numbers: “80” and “08”.

II) x = 9, y = 1…………………..this makes the house numbers: “91” and “19”.

So, the lowest possible numbers of the houses are “80” and “8” (not “91” and “19”).

A single digit number can not have its reverse number. hence 10,20,30,40,50,60,70,80 and 90 can not be the house number

Reverse of these numbers is same, hence 11,22,33,44,55,66,77,88 and 99 can not be the house number

For other reverse numbers the difference will be in multiples of 9 like 9,18,27,36,45,54,63,72,81

As the difference between house numbers ends in two, the lowest possible numbers of our house are 19 and 91

When 0 (zero) also considred as part of house number, the lowest possible numbers of our house are 08 and 80

Related Questions

Olivia is making chocolate chip pancakes for breakfast. The recipe calls for 0.5 quart of milk and 2.5 cups of flour. When she checks her kitchen for ingredients she realizes she has 3 8 quart of milk and 18 8 cups of flour. Does she have the correct amount of milk and flour to make the pancakes from the recipe? Explain.

Answers

Given:

The recipe calls for 0.5 quart of milk and 2.5 cups of flour.

She has [tex]\dfrac{3}{8}[/tex] quart of milk and [tex]\dfrac{18}{8}[/tex] cups of flour.

To find:

Whether she have the correct amount of milk and flour to make the pancakes from the recipe.

Solution:

Required Milk = 0.5 quart

Milk she has =  [tex]\dfrac{3}{8}=0.375[/tex] quarts

Clearly, 0.375 < 0.5.

Required Flour = 2.5 cups

Flour she has = [tex]\dfrac{18}{8}=2.25[/tex] cups

Clearly, 2.25 < 2.5

Since, the amount of milk and flour she has is less than the required amount, therefore she does not have the correct amount of milk and flour to make the pancakes from the recipe

Brainliest to the correct answer ( Evaluate 7 - 5p + 3q when p = 1 and q = 7.)

Answers

Answer:

23

Step-by-step explanation:

7-5(1)+3(7)

7-5+21

2+21

23

Answer:

7-5+21 = 23

Step-by-step explanation:

7 - 5p+ 3q

7 - 5(1) + 3(7)

7 - 5 + 21

7 + 16

= 23 hope this helps :)

which list shows the numbers 2/3, 9/11 and 7/9 arranged from least to greatest​

Answers

Answer:

2/3; 7/9; 9/11

Step-by-step explanation:

You have to divide them and you will get a decimal that is how you put them in numerical order

Two maps are made of a park. The scale from the park to map A is 30 mi to 6 cm. The length of Great Oaks Trail is 4.5 cm on map A. The scale from the same park to map B is 24 mi to 3 cm. The length of Salamander Trail is 3.5 cm on map B. 1. What is the actual length (in miles) of Salamander Trail?

Answers

Answer:

The actual length of Salamander Trail is 28 miles

Step-by-step explanation:

Here, we want to calculate the actual length of salamander trail.

From the question, we are told that a a distance of 3cm on the map B is 24 miles in the park

So now, we have length of 3.5 cm and we want to calculate what is the actual length in miles

From the question on map B;

3 cm = 24 miles

so

3.5 cm = x miles

x * 3 = 24 * 3.5

x = (24 * 3.5)/3

x = 8 * 3.5 = 28 miles

h(x)=x−11 i don't get it

Answers

If your are looking for the x it is x=11

What do the two lines in the graph below have in common?

Answers

Answer: Parallel and same slope

Step-by-step explanation: Parallel means that the lines will never cross, which is shown in the picture. Basically they won't intersect.

branliest plssss :)

expand (2a +36) (2a-3b​

Answers

Use the binomial expansion theorem to find each term. The binomial theorem states
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Simplify the exponents for each term of the expansion.
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Simplify each term.
Tap for more steps...
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6 lumberjacks can cut down 15 mahogany trees in 2 hours. How much longer will
it take 8 lumberjacks to cut down 35 mahogany trees working at the same rate?
B. 1}hr
c.hr
A. 3hr
D. 21hr​

Answers

9514 1404 393

Answer:

  3.5 hr

Step-by-step explanation:

We assume that "the same rate" means effort per tree is a constant. "Effort" is measured as the product of lumberjacks and hours. Then ...

  (lumberjacks)(hours)/trees = (6)(2)/15 = (8)(t)/35

Multiplying by 35/8, we have ...

  (35/8)(12/15) = t = (3·4·5·7)/(2·3·4·5) = 7/2 = 3.5

It will take 8 lumberjacks 3.5 hours to cut down 35 trees.

I finished this question but I need someone to check it, thanks

Answers

Answer:

Looks good ✋

Step-by-step explanation:

Answer:

it is correct

Step-by-step explanation:

I got 5,432,113,209,876,532

Lisa went to the hardware store and bought 12 pieces rope. Each rope was 3/4 of a meter long. If the rope cost $3.50 a meter, how much did she spend?

Answers

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

Answer:

(B) 31.5

Step-by-step explanation:

PLEASE HELPPPP ITS A MULTIPLE CHOICE ANSWER !

Answers

The answer is A my teacher told me
A. to bring point a to b you need ti reflect across the x axis

How many 180, degrees angles does it take to make a full turn?

Answers

Answer:

2 times

Step-by-step explanation:

you do the equation 180 + 180 and get 360 or you can multiply 180 x 2 and get 360. Hope this helps you!

heyyy so like hellpppp me out

Answers

Answer:

gotta be C

Step-by-step explanation:

NEED HELP PLZ! Will give brainliest, show all your work

Answers

6 bracelets and 3 necklaces = 108 in

he wouldn’t be able to use the full amount of cord so those are the most he could make

If the leading coefficient is negative, always factor out the negative.
-x^2+5x-6​

Answers

Answer:

-1(x-2)(x-3)

Step-by-step explanation:

first we factor the negative:

-1 (x^2 - 5x +6 )

the next step, (if possible) is to guess 2 numbers that multiplied are 6

and added are -5

in this case is easy to see that those numbers are -2 and -3

The solution then is:

-1(x-2)(x-3)

If guessing the 2 numbers doesn't work, you need to complete the square

Which one of these shapes is not like the others?

Shape A
Shape B
Shape C

Answers

It is c because b is an enlarged version of a

Answer: C is more oval like than the others

Step-by-step explanation:

6) The wind blew away 35 of your muffins.
That was 5/6
of all of them! With how
many did you start?

Answers

Answer:

42 muffins

Step-by-step explanation:

In order to find the answer, you would divide 35 by 5/6 which would equal 42. So you started with 42 muffins.

Hope this helps and pls do mark me brainliest if you can:)

What is the value of x in the following equation? 5(x + 3) = 30x

Answers

Answer:

x= 3/5

Step-by-step explanation:

5(x+3)=30x

5x+15=30x

-5x -5x

15=25x

x= 3/5

Answer:

3/5

Step-by-step explanation:

5(x+3)= 30x                        [

or,

    (5×x)+(5×3)= 30x          

or,

    5x+15= 30x                  

or,

     5x+15-5x= 30x-5x          [The result or root of the equation remains same                                                                    .                                               if we multiply, divide, add or subtract any                                                                               .                                               number from each side of the equation]

or,

     15= 25x

or,

    15/25= x

or,

    3/5= x

So, the value of x is 3/5

What is the equation of a line, in point-slope form, that passes through (-2,-6)and has a slope of 1/3 ?

Answers

Answer:

y +6 = 1/3(x+2)

Step-by-step explanation:

Point slope form:

y - y1 = m(x - x1)

m = slope

Since x and y are negative, the double negatives make a positive.

Amelia practices the piano 980 minutes in 4 weeks. At what rate did she practice, in minutes per day?

Answers

Answer:

35 minutes a day.

Step-by-step explanation:

4*7=28

980/28=35

Answer:

35

Step-by-step explanation:

980 divided by 28 (days in a month)

Jayla bought 20 candies for 10 dollars. What is the unit price dollars per candy?

Answers

Answer:

$1.00

Step-by-step explanation:

20/10=2

Answer:

$2 per candy

Step-by-step explanation:

20 \ 10 = 2

Which could be the first step in solving this equation?
5x + 4x - 72
A)
Combine like terms.
B)
Add 9x to both sides of the equation
0)
Subtract 72 from both sides of the equation
D)
Subtract 5x from both sides of the equation

Answers

A combine like terms
Hi :)

The answer is A

Because 5x and 4x have the same variable, we can add them together

Hope this helps :)

whats the answer to 4.2v-5-6.5v=

Answers

Answer:

2.3

v

−

5

Step-by-step explanation: your welcome

Answer:

v=-2.1739

Step-by-step explanation:

-2.3v-5=0   so -2.3v=5 divide by -2.3 on both sides and get -2.1739

Suppose SAT Writing score are normally distributed a mean of 497 and a standard deviation of 114. A university plans to admit students whose scores are in the top 30% . What is the minimum score required for admission? Round your answer to the nearest whole number.

Answers

Answer:

The minimum score required for admission to the nearest whole number = 557

Step-by-step explanation:

We solve this using z score formula.

z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

Top 30% of the candidates is a ranking that is equivalent to = 100 - 30% = 70th percentile.

The z score of 70th percentile = 0.524

Mean = 497

Standard deviation of 114.

Minimum score = raw score = ???

Hence:

0.524 = x - 497/114

Cross Multiply

0.524 × 114 = x - 497

59.736 = x - 497

x = 59.736 + 497

x = 556.736

The minimum score required for admission to the nearest whole number = 557

Raul has 50 coupon books to sell. The total amount of money Raul will make from selling x coupon books is represented by a function.

f(x)=20x

What is the practical domain of the function?




all integers from 0 to 50, inclusive

all integers from 20 to 50, inclusive

all multiples of 20 between 0 and 1000, inclusive

all real numbers

Answers

The domain of a function is the set of its possible inputs .The output values are called the range.For any  the set of values x can take is called the domain of the function.

The given function is f(x)= 50x .Here x represents number of coupons . f(x) represents The total amount of money Raul will make .

It is given Raul started with 50 coupon books and has already won a prize for selling at least 10 coupon books .

The values x can take or the domain of the function will lie between  10 and 50.

The correct option is  All integers from 0 to 50, inclusive .

Answer:

The answer is 0 to 50

Write the product as a power:

(xy) (xy) (xy) (xy)

Answers

Answer:

(xy)⁴

Step-by-step explanation:

We have 4 xy terms multiply together. That means we can rewrite it as a power of 4.

Answer:
x^4y^4

Explanation:
We can rewrite this equation grouping all the x variables together and all the y variables together because they are all being multiplied.

(xy) (xy) (xy) (xy)
=x*x*x*x*y*y*y*y
=x^4y^4

I hope this helps! Please comment if you have any questions.

What is the range of the function graphed below?


​

Answers

Answer:

Range: [tex]y\in[-4,0)\cup[2,+\infty)[/tex]

Step-by-step explanation:

Range of a Function

Given a real function f(x), the Range of f is the set of all the values the function can take when x varies within the domain of f.

If we have the graph of the function, a practical rule can be used to find the Range. Imagine a horizontal rule moving from minus infinity to plus infinity. If that rule touches the graph of the function, the vertical height or y-value belongs to the range.

Consider the function provided in the image. If our horizontal rule comes from minus infinity, it won't touch the graph until it reaches the value y=-4. Note the endpoint has a filled dot, meaning the point belongs to the function. The range starts from -4.

Going up in values of y, we touch the function until y=0. But that endpoint is marked with an empty dot, so that point does not belong to the function.

The first interval of the range is [-4,0)

Moving up the rule, we touch the function again when y=2 (included) and we note the function continues to go up to plus infinity (signaled with the arrow). Thus, the second interval is [2,+∞).

The range of f is the union of both intervals:

Range: [tex]y\in[-4,0)\cup[2,+\infty)[/tex]

Answer:

B

Step-by-step explanation:

Solve the compound inequality.

3<2−3≤12
3
<
2
p
−
3
≤
12
3<2−3≤12
3
<
2
p
−
3
≤
12

Group of answer choices

3>≥152
3
>
p
≥
15
2
3>≥152
3
>
p
≥
15
2
3>≥152
3
>
p
≥
15
2

6>≥15
6
>
p
≥
15
6>≥15
6
>
p
≥
15
6>≥15
6
>
p
≥
15

$$66<≤15
6
<
p
≤
15
6<≤15
6
<
p
≤
15

$$3

Answers

Answer:

I would say either the 2,3,4,or 5

if i have a 74.23% in math class and i get a 0 on a Summative Assignment, what is my new grade?


Y'all are smart, please help

Answers

Not good, at all man, you should really invest in a tutor.

Micheal had 1000 viruses on his phone and he got rid of 99 how much viruses does he have to get rid of? and your welcome for the points :D

Answers

901

ILY EPICFARTS2021 THANKS FOR ALL THE POINTS

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