Jayla, Keisha and Melanie are sisters. Keisha is 3 years older than Jayla. Melanie is 3 years older than Keisha. If you add their ages together, you get 42.
1. Write an equation or draw a picture to represent this scenario.
2. How old are the sisters? How do you know?

Answers

Answer 1
jayla= x
keisha= x+ 3
melanie= x + 6

to solve:
42= x + x + 3 + x + 6
42= 3x + 9
-9 -9
33=3x
———-
3

x=11

therefore
jayla is 11
keisha is 14
melanie is 17

Related Questions

khan academy! please helppp

Answers

Answer: Figure A to Figure B is a scale factor of 0.5

Step-by-step explanation:

It's not too hard to figure out scale factor, since the two shapes are the same aside from their scale. Notice how Figure A is 4 units tall, and that Figure Bis 2 units tall. From one figure to another, use the equation Figure B/Figure A to find the scale factor. Although you won't really need to memorize all this, you can count the amount of units on your fingers and figure it out from there.

2. A printing machine makes 240 books
in 30 hours. Written as a unit rate,
what is the speed at which the printing
machine makes books?
Answer quick plzzz

Answers

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: 8 books/ hour

Explanation:

240 / 30 = 8 books/ hour

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer:

8 books

Step-by-step explanation:

durjddndndnfnenfdndndnfn

hope this helps!

Find the surface area of the regular pyramid. 14mm and height is 11.

Answers

Answer:

504

Step-by-step explanation:

TSA (total surface area) = 1/2(p)(l) + B

p (perimeter) = 4(14) = 56

l (slant length) = 11

B (area of vase) = 14(14) = 196

TSA = 1/2 (56) (11) + 196

= 28(11) + 196

= 308 + 196

= 504

Find the value of x and each arc measure

Answers

Answer:

x=11

mMN=65

mNP=115

mNQP=245

Step-by-step explanation:

10x-45=6x-1

4x=44

x=11

mMN 6(11)-1=65/ 10(11)-45=65

mNP 180-65=115

mNQP 65+115+65=245

Please do correctly! If you do I will mark you Brainliest!

Answers

Answer:

The figure should be 56 units squared.

Step-by-step explanation:

The long side is 14 units long (6+6+2) and the short side is 4 units long, so 14 multiplied by 4 is 56.

the area of the recatangle is 112cm square if the length of the rectangle is 14cm what is the width of the rectangle​

Answers

Answer:8cm

Step-by-step explanation:112/14=8

What is the constant proportionality of (2, 0) (4, 2) (6, 4) (8, 6)

Answers

Answer:

Sorry but you just got coconut malled lol

Step-by-step explanation:

Here how you got coconut malled first you wanted to see an answer so your clicked answer which resolted in you Getting coconut malled. thanks for your time.

Find x and y
Show all the work

Answers

both sides are the same so they are equal so...
4x+13=5x-15
x=28

1. Subtract
4
x
4x from both sides.
13
=
5
x

15

4
x
13=5x−15−4x

2. Simplify
5
x

15

4
x
5x−15−4x to
x

15
x−15.
13
=
x

15
13=x−15

3. Add
15
15 to both sides.
13
+
15
=
x
13+15=x

4. Simplify
13
+
15
13+15 to
28
28.
28
=
x
28=x

5.Switch sides.
x
=
28
x=28

Can anyone help me with this math equation??

Answers

Answer:

0.4

Step-by-step explanation:

if u reduce that fraction it would be 4/10 which is 0.4 in decimal form

Can someone please help me with this?!

Answers

The answer is 48 because 8 times 9

Can somebody help with my 2 way table assignments..? i know some of you will take this as a fre.e points question and i don't really care LOL.. just want some help.

Answers

Answer:

what is the question

Step-by-step explanation:

round 33.885 to the nearest 100th​

Answers

Answer:

33.89

Step-by-step explanation:

How to Calculate Rounding to the Nearest 100th?

If the digit after hundredth is greater than or equal to 5, add 1 to hundredth. Else remove the digit. Example

124.586

The third digit of right of decimal point is 6

The second digit after decimal point is 8 which is greater than 5

So add 1 to 8

Result = 124.59

Answer:

it's 33.89 hope it helps

please help with this im super lost and confused

Answers

Answer:

D) C': ( -3, -2), D': ( -4, 1), E': ( -1, -2)

Step-by-step explanation:

Formula for this equation:

(x - 5, y - 3)

C:

(2, 1)

(x - 5, y - 3)

C': ( -3, -2)

E:

(4, 1)

(x - 5, y - 3)

E': ( -1, -2)

D:

(1, 4)

(x - 5, y - 3)

D': ( -4, 1)

find the value of x.

Answers

Answer:

x = 4

Step-by-step explanation:

Given a line parallel to a side of the triangle and intersecting the other 2 sides then it divides those sides proportionally, that is

[tex]\frac{10-x}{x}[/tex] = [tex]\frac{3}{2}[/tex] ( cross- multiply )

3x = 2(10 - x)

3x = 20 - 2x ( add 2x to both sides )

5x = 20 ( divide both sides by 5 )

x = 4

A store pays $423 for a crystal vase and marks the price up by 46%. What is the amount of the mark-up?

Answers

Answer:

194.58$

Step-by-step explanation:

Have a great day! :)

423/100=4,23x46= $194,58 (i think this is the amount of the mark up) + the price of the crystal vase = $617,58. Sorry if this is wrong

Can anyone please help me with this math equation?

Answers

Answer:

1/5

Step-by-step explanation:

umm what's (3/5)/3

1/5

Students in Mrs. Kirby's English class recorded the number of hours they studied for final exams. The results are shown in the bar graph.
Mrs. Karty's English Com
Hours of Study
.
Days of the Week
Based on the information in the graph, what percent of the time spend studying was done from Monday to Wednesday?
A A) 45%
8 B) 18%
C C) 35%
D D) 50%

Answers

Where’s the bar graph?

please solve for M<PRQ​

Answers

Answer:

[tex] m\angle PRQ =49\degree [/tex]

Step-by-step explanation:

[tex] m\angle PSQ = 360\degree - (128\degree + 134\degree )[/tex]

[tex] m\angle PSQ = 360\degree - 262\degree [/tex]

[tex] m\angle PSQ = 98\degree [/tex]

Now, by inscribed angle theorem:

[tex] m\angle PRQ = \frac{1}{2} \times m\angle PSQ [/tex]

[tex] m\angle PRQ = \frac{1}{2} \times 98\degree [/tex]

[tex] m\angle PRQ =49\degree [/tex]

Sheyna has less than 180 minutes to decorate 60 cookies for the bake sale. How long can she spend decorating each cookie to stay within her time limit? (a) Write and solve an inequality.

Answers

Answer:

m < 3

Step-by-step explanation:

Cookies to decorate = 60

Time < 180 minutes

The inequality

60m < 180

Where,

m = number of minutes

60m < 180

m < 180/60

m < 3

Less than 3 minutes decorating each cookie

What are the solutions to 2(x – 7)2 = 32
A. x = 7+ 132
B.x = V65
C.x:3 and x = 11
D. X:-1 and x = 15

Answers

Answer:

C. x:3 and x = 11

The ratio of red marbles to blue marbles in the bag was 3 to 4. If 24 marbles were blue, how many were red?

Answers

Answer:

there would have been 18 red

Step-by-step explanation:

A, B, and C are polynomials, where A = n, B = 2n + 6, and C = n2 – 1. What is AB – C in simplest form?

–n2 + 3n + 5
n2 + 6n + 1
2n2 + 6n – 1
3n2 + 5

Answers

Answer:

n^2 + 6n + 1

Step-by-step explanation:

Firstly, we have to evaluate AB

What we have to do is to multiply A and B

We have this as;

n(2n + 6) = 2n^2 + 6n

Now, we have to subtract the value of C from here and that is;

(2n^2 + 6n) - (n^2 - 1)

2n^2 + 6n - n^2 + 1

= 2n^2 -n^2 + 6n + 1

= n^2 + 6n + 1

Answer:

B

Step-by-step explanation:

Find -4- 2(1)/(2). Model the expression on the number line by drawing an arrow
I'm giving 30 points for this one

Answers

Answer:

Step-by-step explanation:

It would be the middle of the 6 and 5 because you go -4 plus to to the left and in half would be in the middle of that.

plss help i’ll give brainliest thank you!

Answers

Answer:

36

Step-by-step explanation:

The formula of LCM is LCM(a,b) = ( a × b) / GCF (a,b)

The Greatest Common Factor of (9,12) = 3

Therefore

LCM of 9 and 12 = (9 × 12) / 3

= 108/3 = 36

LCM of 9 and 12 = 36

Irrespective of the method, the solution to our question LCM of 9 and 12 is the same.

Therefore, LCM of 9 and 12 is 36

Solve for X. Round your answer to the nearest tenth.

Answers

Basically add up the given side lengths and subtract that from 180 for the triangles

Help me with these ASAP!!!!!!

Answers

Answer:

6) 108 in³

7) 30 ft³

Step-by-step explanation:

6) volume = 36 x 3 = 108 in³

7) total volume = 4 x 5 x 6 x 0.5 = 60 ft³, each person gets half = 30 ft³

Use the Distributive Property to complete the equivalent expression. Enter your answers in the boxes.

4(y – 3) =

Answers

Answer:

4y−12

Step-by-step explanation:

4(y−3)

Use the distributive property to multiply 4 by y−3.

4y−12

A basket of snacks contains 8 packs of oreos, 2 bags of chips, 6 packs of gummies, and 4 granola bars. Bill randomly choses 2 snacks. What is the probability a granola bar is chosen one choice after the other without replacing the first bar? {PLZZZZ HELP}

Answers

Answer:

There is a 3/95 probability that a granola bar is chosen one choice after the other without replacement.

Step-by-step explanation:

The probability of choosing a granola bar without replacing the first bar is 4/20, or 1/5. 4 represents the number of granola bars, and 20 represents the total snacks. Then there are 19 snacks and 3 granola bars which represents the 3/19 chance of getting a granola bar the second time without replacing it.

To find the probability of both of those events happening, multiply them.

(1/5) * (3/19) = 3/95.

Resolución de Problemas con Ecuaciones Lineales
o de Primer Grado.

Ejemplo

Utilizamos el lenguaje algebraico para hacer esa representación.

Sea x número de casos Infectados en Santiago
Sea 2x + 5,088 números de casos Infectados en Sto. Dgo.
Entonces x + 2x + 5,088 = 43,956
x + 2x = 43,956 - 5,088
3x = 38,868
x = 38,868
3
x = 12,912
Luego: x número de casos Infectados en Santiago = 12,912
2x + 5,088 número de casos Infectados en Sto. Dgo. = 2 (12,912) + 5,088 = 31,000 43,956

NESECITO QUE ME AYUDEN A RESOLVER EL PROBLEMA



ACTIVIDAD 1 : Según el boletín #329, d/f 10/02/2021 del Ministerio de Salud Pública, el número total de casos infectados hasta esa fecha en el Distrito Nacional, era el doble más 12,585 casos más que los que había en la provincia de la Santiago. ¿Cuántos contagiados hay en cada una de las provincias si entre las dos suman 89,766 casos?
HELP MEEEEE

Answers

Answer:

what? pls translate it to english

Derek bought his truck for $30,000. The value has dropped by $900 each year. He determined that the value of his truck (V) can be modeled by: V = 30,000 - 900x where x is the number of years since he bought his truck.

In how many years will his truck be worth $4,800?

Answers

Answer:

28 years

Step-by-step explanation:

The difference between 30,000 and 4,800 is 25200. So we divide this number by 900 to find out how many years it will take for the truck to depreciate to this value

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