Genevieve is 3 years older than twice her brother's age. Genevieve is 21 years old. Write an equation to find her brother's age.​

Answers

Answer 1
Her brother is 9.

Because she is 3 years older than half his age, subtract 3 - 21. This gives 18. Then divide 18 / 2. This gives 9.
Answer 2

The equation that represents Genevieve's brother is y = 18/2.

What is the equation that represents Genevieve's brother age?

The equation that represents Genevieve's age:

21 = 3 + 2Y

Where Y represents Genevieve's brother age

In order to determine the required equation, make y the subject of the formula

21 - 3 = 2y

18 = 2y

y = 18/2

To learn more about linear functions, please check: https://brainly.com/question/26434260


Related Questions

Aiden has 56 orange slices to share equally with 6 friends. If Aiden also gets an equal number of orange slices, how many orange slices will each person get?

Answers

Answer:

8 orange slices

Step-by-step explanation:

The total number of persons = Aiden + 6 friends = 7 persons

7 people are to share 56 orange slices equally.

Hence,

7 persons = 56 slices

1 person = x

Cross Multiply

7x = 56 × 1

x = 56/7

x = 8 slices

Therefore, each person will get 8 orange slices

Mía desea pintar una pared de su habitación. Ella no dispone de mucho tiempo al día, por lo que cada día pinta una parte de la pared. El lunes pintó ⅜ de la pared y el martes ⅛ de la pared. Si el miércoles pintó ¼ de la pared, ¿qué parte de la pared le falta pintar?

Answers

Well, 1/3 = 428 so that you could get the same thing as 28 75 hours for you to go to school

What is the answer help plz​

Answers

Answer:

2. 77.9

Step-by-step explanation:

I think its that i looked up the formula sorry if im wrong

what is the value of x in this equation??
15(20+x)=420

Answers

Answer: 8

Step-by-step explanation:

15x+300=420

x = 8

Hope this helps!

Help plssss!!! Giving. 10 pointsssssss

Answers

Answer:

its 34

Step-by-step explanation:

Theo rolls a dice 306 times.

Work out an estimate for the number of times Theo rolls an even number

Answers

I believe it would equal to 51!

HELP PLEASE NO FAKE ANSWERS I WILL MARK BRAINLIEST

Answers

133°
There is a 90° angle so add that to 43° you get 133°
Your answer is 133°
:)

I need help please!!

Answers

Answer:

[tex]-\frac{25}{12}[/tex]

[tex]-2\frac{1}{12}[/tex]

5 weeks 4 days -3 weeks 6 days. _____________

Answers

Answer:

1 week 8 days

that's the pattern

subtract 2 weeks add 2 days

brainliest would be nice

have a nice day

Step-by-step explanation:

Answer:

8 weeks

Step-by-step explanation:

Which equation represents a line that passes through the points (7,5) and (6, 1)?​

Answers

the slope of the line is 4

Shanice's school is selling tickets to a play. on the first day of ticket sales the school sold 11 adult tickets and 6 student tickets for a total of $154. The school took in $145 on the second day by selling 3 adult tickets and 11 student tickets. find the price of a student ticket.

Answers

Answer:

$319

Step-by-step explanation:

add the money and then what u get for the money add it to the other numbers u have.

Here is a list of numbers:
3.3, 3.9, 3.3, 8.1, 4.8, 7.3, 0.6, 6.1, 7.1
State the median.

Answers

4.8 is the correct answer
Hopes this helps:

Answer: 4.8

First, you have to put the numbers in order from least to greatest.

What number is in the middle that will be your median.

GIVING BRAINIEST!


Select the expression that represents the following statement: Divide 15 by 3, and then add 8. (4 points)

Group of answer choices

(15 + 3) ÷ 8

15 + (3 ÷ 8)

15 ÷ (3 + 8)

(15 ÷ 3) + 8

Answers

Answer:

15 / (3+8)

Step-by-step explanation:


What is the volume of this figure??

Answers

Answer:

meter hvcdfghzdjgdfghe

Answer:

64,800

Step-by-step explanation:

Rob's office recycled a total of 12 kilograms of paper over 2 weeks. How many weeks will it
take Rob's office to recycle a total of 18 kilograms of paper? Assume the relationship is
directly proportional.
weeks

HOW MANY WEEKS ???

Answers

Answer:

3 unless you're adding onto the 12 kilograms, then only 1

Step-by-step explanation:

a box contains 18 blue flashlights 3 red flashlights 7 silver flashlights ans 2 black flashlights. the flashlights are identical in size and shape. if one flashlight is chosen at random what is the probability that the flashlight will be either blue or black?

Answers

Answer:

The answer is 20/30 or in simplified form 2/3

Step-by-step explanation:

The way I do it is I take the probability of blue flashlights, 18/30, added to the probability of black flashlights, 2/30. Then, you simplify by dividing both numbers by 10.

Jordana is putting a fence around a garden that is shaped like a half circle and a rectangle.

A rectangle with length 28 feet and width 14 feet. A semicircle with diameter 14 feet is on top of the rectangle.

How much fencing will Jordana need? Use StartFraction 22 over 7 EndFraction for Pi.
64 ft
86 ft
92 ft
114 ft
Mark this and return

Answers

Answer:

92

Step-by-step explanation:

An amount of $5,000 is invested. The interest rate is 3%. What is the amount earned in one year?

Answers

Answer:

$150

Step-by-step explanation:

To solve this we first must find what 3% is in decimal form. Move the decimal to the left 2 spots. 3% -> 0.03

Then multiply...

5000 · 0.03 = 150

Answer:

$5,152.08

a = p (1 + r/n)^nt

What is the value of the fraction below?
0/25

Answers

The value is nothing because the numerator is 0.

what measurement is equivalent to 3 meters

A- 9 centimeters

B- 36 centimeters

C- 100 centimeters

D- 300 centimeters

Answers

1m =100cm so 3m =300 cm

what is the value of this​

Answers

Answer: 5.0625 or 5 1/16

Step-by-step explanation:

im smart

What is the answer to the problem? 10 points :)

Answers

The answer is the third one: 255

Can u solve this please? Pythagorean theorem

Answers

Answer:

12.8 ft or exactly sqrt 164

Step-by-step explanation:

Pythagoreans is a^2+b^2=c^2

10^2+8^2=164

sqrt 164 = 12.8 ft

Determine whether the set of
lengths could form a triangle.
5, 2, and 3
-

Answers

Answer:

no

Step-by-step explanation:

The sum of the lengths of any two sides of a triangle is greater than the length of the third side. And this MUST be true for all combinations

5+2 is greater than 3

5+3 is greater than 2

3+2    IS NOT  grater than 5

Gloria says the two expressions -2(3x-3) and -6x+1 are equivalent. Is She correct? Explain how you know.

Answers

Answer:

No she is not correct .

Step-by-step explanation:

Given

-2(3x-3)=-6x+1

simplify the right hand side

-6x+6 that is not equal to -6x+1

Find the Circumference and Area of the circle with a diameter of 3 inches.

Answers

Answer:

Circumference-18.84956, rounded, 18.85

Area- 28.27433, rounded-38.27

Answer:

C≈9.42in

A≈7.07in²

Step-by-step explanation:

C=2πr

d=2r

C=πd=π·3≈9.42478in

A=πr2

d=2r

A=1

4πd2=1

4·π·32≈7.06858in²

Hope this helps!

Intro to Rotations

If P = (4,7),

Find: r190°(P)


([?], [])

Exam-please don’t answer if you don’t know thank you !

Answers

Answer:

p(9,7)⇒(-7,4)

Step-by-step explanation:

p(4,7)

(x,y) ⇒(-y,x)

p(4,7)⇒p¹(-7,4)

Answer:(-7,4)

hope it helps....

Help me somebody please

Answers

It’s not clear try posting a better pic !

Each side of an equilateral triangle measures 30cm. Find the length of an altitude, a , of the triangle?

Answers

Answer:

[tex]X=25.98cm[/tex]

Step-by-step explanation:

From the question we are told that:  

Length of each side [tex]l=30cm[/tex]

Let the triangle be divide by two form a right angle triangle with base angles as [tex]90 \textdegree[/tex](angle of perpendicularity) and [tex]60 \textdegree[/tex] (angle on each vertices of an equilateral triangle)

Generally the equation for the Altitude X is mathematically given by

Trigonometric Rule

[tex]X=30sin60[/tex]

[tex]X=15\sqrt{3}[/tex]

[tex]X=25.98cm[/tex]


A survey asked 100 adults about car ownership and ride-sharing apps. Of the 38 people without a car, 29 have ride-sharing app on their phone. A total of 47 people have a ride-sharing app on their phone.

What percentage of people surveyed who own a car have a ride-sharing app on their phone? Round to the nearest whole percent.
Enter the correct answer in the box.

Answers

Answer:

it should be 18%

Step-by-step explanation:

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