The sum of the ages of Noah and Billy is 25; the sum of the ages of Noah and Ty is 20; and the sum of the ages of Billy and Ty is 31. Who is the oldest of the three and how old is he?

Answers

Answer 1

Answer:

the oldest is Ty and his age is 24

Step-by-step explanation:

Let us assume the billy age be x

Noah age be y

And, Ty age be z

Now according to the question

y + x = 25 ..........(1)

y + z = 20..........(2)

x + z  = 31..............(3)

z = 31 - x

since

y + z = 20

y + 31 - x = 20

y - x = -11 .............(4)

Now solve (1) and (4) equation

So,

y + x = 25

y - x = -11

2y = 36

y = 18

x = 25 - 18

= 7

z = 31-7

= 24

Hence, the oldest is Ty and his age is 24


Related Questions

Select the correct answer.
Annalise makes rectangular patchwork quilts out of leftover fabric scraps. The first scrap she is using to make a quilt has a width of 2x feet and a length of 5x feet. When finished, the entire quilt will be 5 feet wider and 3 feet longer than the first fabric scrap used. Which of the following functions will give the area, f(x), of the quilt in square feet?

A.
f(x) = 10x2 + 15
B.
f(x) = 10x2 + 25x + 15
C.
f(x) = 10x2 + 16x + 15
D.
f(x) = 10x2 + 31x + 15

Answers

Answer:

C

Step-by-step explanation:

I did it in my head, might be wrong.

The function that gives the area, f(x), of the quilt in square feet is

f(x) = 10x² + 16x + 15

Option C is the correct answer.

What is a rectangle?

A rectangle is a 2-D shape with length and width.

The length and width are different.

If the length and width are not different then it is a square.

The area of a rectangle is given as:

Area = Length x width

We have,

The area of the first fabric scrap is:

A = width x length

A = (2x)(5x)

A = 10x²

The area of the entire quilt is 5 feet wider and 3 feet longer than the first fabric scrap.

Therefore, the width of the quilt is (2x + 5) feet and the length is (5x + 3) feet.

So, the area of the quilt.

A = width x length

A = (2x + 5)(5x + 3)

A = 10x² + 16x + 15

Therefore,

The function that gives the area, f(x), of the quilt in square feet is

f(x) = 10x² + 16x + 15

Learn more about rectangles here:

https://brainly.com/question/15019502

#SPJ5

Mai put $4,250 in the bank for a rate of 4% simple interest per year. After
3 years, what will be the balance of her bank account?
0

Answers

Answer:

4760

Step-by-step explanation:

Simple interest formula:

PV(1+it)

4250(1+.04*3)=4760

Which expression is equivalent to v147?

Answers

7v3 is the radical simplified... to do this you can use multiple methods. I like to use a factor tree.

Here’s a link to a website that explains some different methods of solving:

http://m.moomoomath.com/?url=http://www%2emoomoomath%2ecom%2fsimplyfing%2dradicals%2ehtml#2653

Please help me find the mean and the range.

Answers

mean: 5.5 hours

range: 7.9 hours

f(x)=2x2−10x+11 What is f(4)?

Answers

Set the polynomial equal to y y to find the properties of the parabola. y=2x2+10x+11 y = 2 x 2 + 10 x + 11. Rewrite the equation in vertex form. Tap for more steps.

can someone do a new zoom dont ask questions

Answers

Answer:

Please don't do zooms without providing your explanation for doing them.

Step-by-step explanation:

You need to present yourself as someone who isn't creepy or anything. This is why you should provide an explanation in case you just want to talk.

Answer:

what do you mean

Step-by-step explanation:

It cost $16.80 for a half dozen cookies. How much does one cookie cost?

Answers

i think it’s 36 cents or .357
I hope this answer is right.
A half dozen= 6
So 16.80/6 = $2.80
Please mark me brainliest if I got it correct:)

A square is rotated clockwise about center point P.
Click on all the degrees of rotation that will carry the square onto itself,
45

900
120
135
180
225
240
270
315
360

Answers

The degrees of rotation that will carry the square onto itself are,

⇒ 90°, 180°, 270°, 360°

Since, A Square is a two dimension figure with 4 sides, 4 corners and 4 right angles. All the sides of the square are equal and parallel to each other.

Given here:

A square is rotated clockwise about center point P.

Now , Since there are have 4 vertices, your starting vertex can land in 4 different starting places and still come up with the same figure.

So if you take 360/4 you get 90 degree rotations to each consecutive vertex.

or more specifically;

= 360/4

= 90

Hence, the square will coincide itself after every integral multiple of 90.

Thus, 90°, 180°, 270°, 360° are the required angles of rotation.

Learn more about the rectangle visit:

https://brainly.com/question/2607596

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What is the difference between −82°F and 93°F?
A
−175°F

B
−11°F

C
11°F

D
175°F

Answers

Step-by-step explanation:

93 -(-82) = 93+82 = 175°F (option D)

Katelyn invested $1500 into her account which earned interest compounded continuously. After 10 years, she discovered that she had $3935.36. What interest rate percent did Katelyn earn?

Answer: ____ % interest

Answers

Given:

Principal = $1500

Time = 10 year

Amount after interest compounded continuously = $3935.36

To find:

The rate of interest.

Solution:

The formula for amount after continuous compound interest is:

[tex]A=Pe^{rt}[/tex]

Where, P is principal, r is the rate of interest in decimal and t is time in years.

Putting [tex]P=1500,A=3935.36,t=10[/tex] in the above formula, we get

[tex]3935.36=1500e^{r(10)}[/tex]

[tex]\dfrac{3935.36}{1500}=e^{10r}[/tex]

[tex]2.6236=e^{10r}[/tex]

Taking ln on both sides, we get

[tex]\ln(2.6236)=\ln e^{10r}[/tex]

[tex]0.9645=10r[/tex]                   [tex][\because \ln e^x=x][/tex]

Divide both sides by 10.

[tex]\dfrac{0.9645}{10}=r[/tex]

[tex]0.09645=r[/tex]

The rate of interest in percentage is:

[tex]r=100\times 0.09645[/tex]

[tex]r=9.645\%[/tex]

Therefore, the required rate of interest is 9.645%.

will give brainly. At the beginning of spring, Austin planted a small sunflower in his backyard. When it was first planted, the sunflower was 25 inches tall. The sunflower then began to grow at a rate of 3 inches per week. How tall would the sunflower be after 6 weeks? How tall would the sunflower be after ww weeks?

Answers

At the start, it is 25 inches, soo we will need to add that on at the end

If it grew 3 inches per week for 6 weeks, it would be 3+3+3+3+3+3=18inches or 3x6=18inches

So now 18 + 25 = 43 inches

Hope this helps :D

Who want points and brainlist just answer quick............

Answers

Answer: 1/16

Step-by-step explanation:

Khou 11 created a dot plot to represent the spread of temperatures in Houston during the month of march what is the value of the Q1 and Q3

Answers

Answer:

SOOOO SORRRYYY I NEED POINTS

Step-by-step explanation:

IM GETTING 50 POINTSSS SORRRYYYYYY

Answer:

15

Step-by-step explanation:

I'm not certain if It's right but I believe Q1 is in between the first dot and the rectangle and Q3 is the right side of the rectangle. The area they each cover is 15 so that is my best guess.

HOW TO DO THIS QUESTION ​

Answers

Answer:

8 : 2.5

Step-by-step explanation:

3√512:  Convert the decimal into an equivalent fraction You can also use a calculate to divide 1 by the fraction.

Please mark as brainliest if answer is right

Have a great day, be safe and healthy  

Thank u  

XD  

Answer:

3.2 : 1

Step-by-step explanation:

Given

[tex]\sqrt[3]{512}[/tex] : [tex]\frac{1}{0.4}[/tex]

= 8 : 2.5 ( divide both parts by 2.5 )

= 3.2 : 1

Why are 1966 pennies worth almost $20?

Answers

Answer:

its because 1966 pennies are made from 95% copper and 5% zinc but they are mainly worth 10 to 20 cents each penny.

Step-by-step explanation:

A survey went out asking consumers about their shopping habits. The results showed that
165 people were more likely to go to a store if they had a coupon. This represents 66% of
the total number of people who took the survey
How many people took the survey?
F: 25
G: 109
H: 199
J: 250

Answers

Answer:

G

Step-by-step explanation:

In math whenever you have the word "of" it means multiply, so 66% of the total number of people who took the survey( which is 165) is 66/100 multiplied by 165.

[tex]\frac{66}{100} *165= 108.9[/tex] which rounds up to 109

G is your answer!! Hope this is right

Rick buys a spatula costing $2.23. He gives the cashier $5.00. The cashier gives him his change using the least number of coins and bills possible. How many of each coin or bill does he receive?

Answers

Answer:

2 Dollar Bills

3 quarters

2 pennies

Which of the following correctly combines these terms? 3a + 6b - 7a + (-3b) + 9c
F. 8abc
G. 4a " 3b + 9c
H. 8 + abc
I. -4a + 3b + 9c

Answers

Answer:

I

Step-by-step explanation:

We have to added up the like therms

like therms are therms with the same literal parts

3a - 7a = -4a

6b-3b= 3b

-4a + 3b+ 9c

PLS HELP ILL GIVE BRAINLIEST
What are the coordinates of the center of the ellipse?

Answers

Answer:

Step-by-step explanation:

Standard equation of an ellipse,

[tex]\frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1[/tex]

(h, k) is the center of the ellipse

Value of a = Distance of the center from the vertex

b = Distance of the center from the covertex

From the picture attached,

a = Distance of the center (h, k) from the vertex (2, -2) = 3 units

b = Distance of the center (h, k) from the co-vertex (-1, 0) = 1 unit

Center of the ellipse (h, k) = (-1, -2)

Halla el volumen del siguiente prisma triangular...​

Answers

Answer:

El volumen del prisma triangular es 110 centímetros cúbicos.

Step-by-step explanation:

El volumen del prisma ([tex]V[/tex]), en centímetros cúbicos, es igual al producto del área superficial del triángulo ([tex]A[/tex]), en centímetros cuadrados, y la profundidad del prisma ([tex]z[/tex]), en centímetros:

[tex]V = A\cdot z[/tex]

[tex]V = \frac{1}{2}\cdot b\cdot h\cdot z[/tex] (1)

Donde:

[tex]b[/tex] - Base del triángulo, en centímetros.

[tex]h[/tex] - Altura del triángulo, en centímetros.

Si sabemos que [tex]b = 4\,cm[/tex], [tex]h = 5.5\,cm[/tex] y [tex]z = 10\,cm[/tex], entonces el volumen del prisma triangular es:

[tex]V = \frac{1}{2}\cdot (4\,cm)\cdot (5.5\,cm)\cdot (10\,cm)[/tex]

[tex]V = 110\,cm^{3}[/tex]

El volumen del prisma triangular es 110 centímetros cúbicos.

What can you say about the size of the angles of similar triangles?​

Answers

Answer:

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion . In other words, similar triangles are the same shape, but not necessarily the same size. The triangles are congruent if, in addition to this, their corresponding sides are of equal length.

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion . In other words, similar triangles are the same shape, but not necessarily the same size. The triangles are congruent if, in addition to this, their corresponding sides are of equal length.

Please help me I will give 30 points

Answers

Answer:

a, c, & d

Step-by-step explanation:

-6,1 , 0,5 , 1,7 hope this help

One serving of Mike’s crackers has 150 calories and a mass of 30 grams.

How many calories are in 6 grams of the crackers?

Answers

Step-by-step explanation:

You need to times it, so 150 x 30, and then whatever it is, thata the answer

Please help!
Factor 4x^2-16x

Answers

4x (x-4) Hope this at least helps!

Answer:

Step-by-step explanation: 3 because 4x2=8  so you would have to do 8x4 =32

write a point-slope equation for the line that has slope 4 and passes through the point (11.7)

Answers

Answer:

y-7=4(x-11)

Step-by-step explanation:

The day before yesterday I was 25. The next year I will be 28. This is true only one day in a year. What day is my Birthday?

Answers

Yesterday was your birthday. (May 29)

i need helpp please this is due today (show work/explanation)

Answers

Answer:

14 x 14 = 196

10 x 14 x 1/2(basically just dividing by 2) = 70

70 x 4(four sides of triangles) = 280

Now let's add the areas together:

196 + 280 = 476 cm^2 is your answer.

In parallelogram MNPQ if QR=5 find RN.

Answers

Answer:

RN=5

Step-by-step explanation:

QR is congruent to RN therefore they are the same length

Suppose a straight line is fit to data having response variable y and explanatory variable x. Predicting values of y for values of x outside the range of the observed data is called

Answers

Answer:

Extrapolation

Step-by-step explanation:

Given

[tex]x \to[/tex] Explanatory variable

[tex]y \to[/tex] Response variable

Required

Predicting y outside range of x is called

This is referred to as extrapolation.

Take for instance, the range of x is: 1 - 9

You have extrapolated when, 10 is assumed to be the value of x and this value is entered in an equation to predict y.

DESPERATE, PLEASE ANSWER FAST
(multiple choice answer)
Which associations best describe the scatter plot?

Select each correct answer.


Linear association

Nonlinear association

Negative association

Positive association

Answers

Answer:

Nonlinear association

Step-by-step explanation:

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