Another neighbor said, “My age is the difference between twice my age in 5 years and and twice my age 5 years ago.” How old is this neighbor? A third neighbor had the same claim for 17 years from now and 17 years ago. How old is this neighbor?

Answers

Answer 1

Answer:

The neighbor is 20 years old.

The third neighbor is 68 years old.

Step-by-step explanation:

Equations

Let's set:

x=current age of the neighbor

x+5=his age in 5 years

x-5=his age 5 years ago

He claims that his age is the difference between twice his age in 5 years and twice his age 5 years ago. Then:

x = 2( x + 5 ) - 2( x - 5 )

Operating:

x = 2x + 10 - 2x +10

Simplifying:

x = 20

The neighbor is 20 years old.

Repeating for the other neighbor, a similar equation is established:

x = 2( x + 17 ) - 2( x - 17 )

Operating:

x = 2x + 34 - 2x +34

Simplifying:

x = 68

The third neighbor is 68 years old.


Related Questions

A female hippopotamus can weigh 48,000
ounces. How many tons can a female
hippopotamus weigh?

Answers

Answer:

1.5 tons

Step-by-step explanation:

1 US tons is equal to 32,000 ounces. Using this, you divided 48,000/32,000 =  12/8 = 1.5 tons

Which number is rational?
√2
10
016

Answers

16 I think is a rational number

4y + 3 ≤ 5 - 10y nhttjj

Answers

Answer:

heres ur answer

Step-by-step explanation:

Can someone help me with this problem and give the answer

Answers

Answer:

D

Step-by-step explanation:

No more means the other number is less than or equal to.

Can someone pls explain to me how Identify the domain and range of a graph!!, ​

Answers

Answer:

Ok

Step-by-step explanation:

So, the domain is the set of all possible values that can be inputted into the function. Or where is function on the x axis is the function defined. The range is similar but on the y axis. In this case, the function you have there appears to go on to infinity (I assume that is what the arrow means) and so the range would be [-1, -infinity) and domain [1, infinity). Brackets are important here because it shows that the function is still defined at point (1,-1), therefore, I used [ bracket symbol (I again assumed that the shaded in black dot at point (1,-1) means that the function is closed at that point and that when it is not shaded in, it is open). I feel like I didn't explain very well but good luck and hopefully someone does a better job that what I did.

What is the exact distance from (−5, 1) to (3, 0)?

Answers

Answer:

√65

Step-by-step explanation:

I am pretty sure this is the correct answer :)

Answer:

d = √(x2 - x1)² + (y2 - y1)²           given two points, (-5, 1)  (3, 0)

d = √(3 - (-5)² + (0 - 1)²

d = √(8)² + (-1)²

d = √64 + 1

d = √65       B. is the answer

Step-by-step explanation:

The American Academy Dermatology says that hair grows about 6 inches per year. How much hair can you expect to grow after 3 years, given that you do not get any haircuts.

Answers

About 18 inches / 1 foot and 6 inches

If hair grows about 6 inches every year, and we want to find out how much will grow in 3 years, we multiply.

6 x 3 = 18 inches

Then we can simplify it because there are 12 inches in a foot

18/12 = 1 6/12

Which one of these is in scientific notation?
8.98 x 5^6
8.987000
80.987 x 10
8.98 x 10^6

Answers

Answer:

8.98 x 10^6

Step-by-step explanation:

To be in scientific notation, the number has to be between 1 and 10 then the 10^# has to be present.

Suppose m <6= 147º. Find <1 and m<3

Answers

Answer:

∠ 1 = ∠ 3 = 33°

Step-by-step explanation:

∠ 3 and ∠ 6 are same- side interior angles and are supplementary , thus

∠ 3 + ∠ 6 = 180° , that is

∠ 3 + 147° = 180° ( subtract 147° from both sides )

∠ 3 = 33°

∠ 1 and ∠ 3 are vertical angles and congruent, thus

∠ 1 = ∠ 3 = 33°

Find the length of the missing side. The triangle is not drawn to scale

Answers

Please add triangle image.

Answer:

i cant answer without a picture or something to see what the missing sides are..

comment the graph and i will answer the question

Step-by-step explanation:

Which equation can be used to find T the number of tickets each class needs to sell so that the total amount raised is the same for both classes

Answers

Answer:

C.

Step-by-step explanation:

If you know how much each class is selling tickets for and how much they've already raised then you take those two values and set them equal to each other.

2.5t + 350 = 3t + 225

To actually find the number of tickets each class would have to sell you would just solve for t.

PLEASE HELP I AM BEING TIMED!!!

Statment: Find the value of x that makes Line U and line V and parallel.

Options: 2
6
8
4

Answers

Answer:

6

Step-by-step explanation:

To be parallel the degree of both lines need to be equal

130=20x+10

120=20x

6=x

12 ÷ –2 = PLEASE HELP ME I NEED HELP FAST

Answers

Answer:

-6

Step-by-step explanation:

Answer:

-6

Step-by-step explanation:

THe ratio of goldfish to gallons of water is 7 to 2 how many gallons of water do you need to keep16 fish

Answers

Answer:

56

Step-by-step explanation:

7:2    16/2=8   8(7)=56

Which expression is equivalent to √100 +4√10 +3 −8 √10?
1) −4√10 + 13
2) 10 − √10
3) 3 − 2√10
4) √10

Answers

Answer:

√100 +4√10 +3 −8 √10 =  −4√10 + 13 TRUE

Step-by-step explanation:

Simplify the following:

sqrt(100) + 4 sqrt(10) + 3 - 8 sqrt(10)

Hint: | Simplify radicals.

sqrt(100) = sqrt(10^2) = 10:

10 + 4 sqrt(10) + 3 - 8 sqrt(10)

Hint: | Evaluate 10 + 4 sqrt(10) + 3 - 8 sqrt(10).

10 + 4 sqrt(10) + 3 - 8 sqrt(10) = 13 - 4 sqrt(10):

Answer:  13 - 4 sqrt(10)

If angle J and angle K are vertical angles, J and K are congruent.

Answers

Answer:

Yes they are congruent

Step-by-step explanation:

Hope this helps!!!!!!!

Yes they are congruent

I will brainlist whoever gets it right.
The results of a swim meet are shown. Who swam faster? Explain your reasoning.
Name: /Event: /Time:

Tawni / 50-m Freestyle / 40.8

Pepta / 100-m Butterfly / 60.2

Susana / 200-m Medley / 112.4

Answers

I think it is the second one

Answer:

Susana

Step-by-step explanation:

divide the m by the time to get how many mps

50/40.8=1.225 mps

100/60.2=1.661 mps

200/112.4=1.779 mps

hi im maddie im only in 5th grade tgo but it says to express nine thousandsths as a decimal​

Answers

Answer:

0.009

Step-by-step explanation:

Simply move the decimal point from nine- then move it to the right three times.

If you need any more help, do not hesitate to ask me. :)

Answer: 0.009  hope this helps.

Help me please I do not like math:(

Answers

Answer:

-2  1/8 for the first question

Step-by-step explanation:

pls i want 0.00659887 in a standard form​

Answers

Answer: 6.59887x10^-3 (scientific notation) (it’s already in standard form I think)

Step-by-step explanation:

Is √38 rational or irrational

Answers

Answer:

Rational

Step-by-step explanation:

Answer:

irrational

Step-by-step explanation:

because it does not simplify into a whole number

2. This model represents an equation

(a) Write an equation that could be used to solve x.
(b) Solve the equation for x. Show your work

ILL GIVE YOU BRAINLIEST

Answers

Answer:

i believe its A. hope that helps

Step-by-step explanation:

Answer to The model represents the quotient of two fractions equation does this model represent

A.) 5x-1=-6
B.) 5x=-5 -5/5=-1 so x=-1
The answer is x=-1 because in order to solve the equation, you have to remove the -1, which means you add 1 to each side, because the -6 was negative, when you add 1 it goes to -5, at this point it should look like 5x=-5. Now you divide by 5 on both sides since the coefficient of x is 5, leaving you with the answer, x=-1

HELPPP ASAP PLSSS!!!

Answers

Answer:

a.) yes

b.) no

c.) yes

d.) yes

1. Yes
2. No
3. Yes
4.yes

The length of a football field including the end zones is 48 feet longer than four times the length of a tennis
court. It is also 282 feet longer than a tennis court.
How long is the foorball field?
How long is the tennis court?

Answers

Answer:  

T=78 feet (Tennis court)

360 feet (Football Filed)

Step-by-step explanation:

4T+48 = T+282

The length of the football field is 360 feet.

The length of the tennis court is 78 feet.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We have to given that;

The length of a football field including the end zones is 48 feet longer than four times the length of a tennis court.

And,  It is also 282 feet longer than a tennis court.

Let the length of the tennis court = x

So, The length of the football field = 48 + 4x

Here, The length of the football field is 282 feet longer than a tennis court.

So, We get;

⇒ 48 + 4x = 282 + x

⇒ 4x - x = 282 - 48

⇒ 3x = 234

⇒ x = 78

Thus, The length of the football field = 48 + 4x

                                                         = 48 + 4×78

                                                         = 48 + 312

                                                          = 360 feet

The length of the tennis court = x

                                              = 78 feet

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ2

Select the false statement

A. Dilations make pre-images bigger.
B. Dilations make pre-images smaller.
C. A dilated image has different angle measurements than the pre-image.
D. A dilated image has the same angle measurements as the pre-image.

Answers

Answer:

C

Step-by-step explanation:

A & B & D are true

It simply makes it bigger/smaller with keeping the same angle measurements.

If Hector is 8 years old and Mary is 3 years old, how old will Mary be when Hector is 16? Can I use proportional reasoning in here

Answers

Answer:

Step-by-step explanation:

H=8

M=3

=>difference is 5 years

H=16

=>M=16+5=21

will be nice if you give me brainlies.Good luck!

Answer:

When he is 16 Mary will be 11

Step-by-step explanation:

First subtract 8-3 to see how much older hector is

You will get 5

Now subtract 16-5 to get 11

Can we use proportional reasoning?

NO!!!!!

Reasoning- did we subtract? Yes! You can’t find proportional reasoning if you subtracted or add

-3(6 - 8i) standard form.

Answers

Answer:

6.

Step-by-step explanation:

6 - 8 = 2.

2 x 3- = 6.

Brainiest?

-3(6-8i) day you are the perfect example you from this

Ron is saving money for college. Each month he deposits 10% of his net income plus

an additional $50 into a savings account. His net income, after taxes have been taken

out, is 80% of his gross income. Find the amount that Ron saves a month when his

gross income is $2400.

Answers

Answer:

$242

Step-by-step explanation:

His Gross income a month is $2400.

Now, we are told that his net income, after taxes have been taken out, is 80% of his gross income.

Thus;

Net income a month = 80% × 2400 = $1920

Now, Each month he deposits 10% of his net income plus an additional $50 into a savings account.

This means amount saved each month is = (10% × 1920) + 50 = 192 + 50 = $242

7723 as a fraction what is the answer

Answers

Answer:

7723 as a fraction is 7723/1

Step-by-step explanation:

(-12x^8 – 2v) - 11x^8

Answers

Answer:

-23[tex]x^{8}[/tex]-2v

Step-by-step explanation:

Other Questions
Plz help!The Gazelle football team made 5 plays in a row where they gained 3 yards on each play. Then they had 2 plays in a row where they lost 12 yards on each play. What is the total change in their position from where they started? MULTIPLE CHOICE QUESTIONTrue or False: Democrats across the countrywere united against Republicans despiteTruman's stance against racism.TrueFalse II. Pure magnesium metal is often found as ribbons and can easily burn in the presence of oxygen. When 3.86 g of magnesium ribbon burns with 155ml of oxygen at 1.0 atm and 275 K , a bright, white light and a white, powdery product is formed, magnesium oxide. How many grams of excess reactant remain? HELP ME PLEASEEEEEEEEEDuring this time period, which of the events below came FIRST?A. The first trope is performed.B .Pageant wagons are used.C. The church outlaws theater.D. Writers begin to create secular plays. Which statement best describes Lincoln's reaction to the formation of the confederate States of america In which three areas did NAFTA reduce or eliminate tariffs? Select the sentence correctly divided between subject and predicate.A.Some / scholars focus on language as communication.B.Some scholars focus / on language as communication.C.Some scholars focus on language / as communication.D.Some scholars / focus on language as communication.E.Some scholars focus on language as / communication. Calculating Density A sample of a sub-stance with a mass of 85 g occupies a vol-ume of 110 cm What is the density ofthe substance? Will the substance floatin water? Explain your answer: Sometimes relative location can be more useful than absolute location.Which sentence from the article provides the BEST support for the statement above?(A) Most geographic studies begin with learning the location of places.(B) As one drives along most major highways, there are mileage signs indicating the distance to the nexttown or city.(C)(D)One can also give an address as an absolute location.Still, most of the time it's easier to just display a map or describe the relative location of a place like astate or country. All cells have a cell wall but only plant cells have a cell membrane A) true B) false C) neither true or false im confused someone help A theme isthe use of figurative language in a folktale.something that applies to children only.the characters in a specific story.an observation or common truth about life. 230.071 in expanded form A retiree has $200,000 to invest and needs to make $13,000 with her investments. If she can invest in government bonds at 6% or investment grade bonds at 8%, how much should she invest in each? NEED HELP ASAP!!!!!!!!!!!!I need to highlight which one is correct Can some one help please?? C. Using the grid provided, show me how you would set up a weeklycalendar/planner-- be sure to include due dates and classes! Monday Tuesday Wednesday Thursday Friday 3(x+-10)=5(2x+8) Honestly I hate math lol. How do elements tend to structure the molecules of life? The total cost to take the ferry to Greene Island is a $12 fee for the car plus $3 for each passenger in the car. The graph shows this relationship.50454035Cost of Ferry 30(s)25201510501509234Number of PassengersHow will the graph change if the car fee is changed to $10?A. The y-intercept will shift up.B. The y-intercept will shift down.OC. The slope of the line will increase.D. The slope of the line will decrease.