1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
malfutka [58]
3 years ago
13

Each of my daughters has as many brothers as sisters, but each of my sons has three times as many sisters as brothers. How many

children do I have?
Mathematics
1 answer:
melomori [17]3 years ago
3 0
Put the number of daughters as x and number of sons as y.

For the first half of the statement:
Number of sisters any daughter has = x-1 ( because you can't be your own sibling)
Number of brothers = y

y=x-1.

For the second half:
Number of sisters any son has = x
Number of brothers any son has = y-1

3(y-1)=x

Solve as system of equations.
3y-3=x
3(x-1)-3=x
3x-3-3=x
2x=6
x=3
y=x-1=3-1=2

3 daughters and 2 sons.

Hope this helps!
Your fortune is "You can't have everything...where would you put them all?"
You might be interested in
The cost of tuition at a 2 year school is $14,000 per academic year. Todd is eligible for $6,500 in financial aid to cover tuiti
emmainna [20.7K]

Answer:

$625

Step-by-step explanation:

If Todd has to pay $14,000 in tuition for his school each year and uses $6,500 in financial aid each year all for 2 years, the money he needs to save can be modeled by:

2(-$14000 + $6500) + 2(12x) = 0.

x is the minimum amount of money he needs to save in order to cover this expense without debt.

Thus 2(-$14000 + $6500) + 2(12x) = 0 →

2(-$7500) + 24x = 0 → -$15000 + 24x = 0 →

24x = $15000 → x = $625

4 0
3 years ago
Read 2 more answers
What is -2(5+6m) + 16 = -90 ?<br> Can you please show with detail
GarryVolchara [31]

Answer:

m = 8

Step-by-step explanation:

-2(5 + 6m) + 16 = -90

Start by distributing -2 inside the parentheses. This means you will multiply everything inside the parentheses (5 + 6m) by -2.

-10 - 12m + 16 = -90

Simplify the left side of the equation by combining like terms.

6 - 12m = -90

Subtract 6 from both sides of the equation to isolate the term containing the variable m and to move all other terms to the other side (right) of the equation.

-12m = -96

Divide both sides of the equation by -12 to isolate and solve for m.

m = 8

4 0
3 years ago
23. Lines p and q are parallel.
fenix001 [56]

Answer:

\angle \: 2 = 60 \degree..(alternate \:  \angle s)

8 0
3 years ago
Read 2 more answers
LOOKING FOR COCO!!! COCO WHERE R U???
Scilla [17]

Answer:

may i ask who is coco

Step-by-step explanation:

glen coco off of mean girls??????????????

3 0
2 years ago
Read 2 more answers
Find the difference in the given lengths of the polygons . (7x + 2) units (6x - 5) units .
Tom [10]

Answer:

Difference in the lengths of the polygons is (x + 7) units.

Step-by-step explanation:

Lengths of the given polygon = (7x + 2) units and (6x - 5) units

Therefore, difference in the given lengths = (7x + 2) - (6x - 5)

                                                                      = (7x - 6x) + (2 + 5)

                                                                      = x + 7

Therefore, difference in the lengths of the polygons is (x + 7) units.

7 0
3 years ago
Other questions:
  • Can someone help me?
    10·1 answer
  • A drug contains 92 marvels of which 20 are blue 8 are red and the rest are green.what is the ratio of blue marbles to green marb
    15·1 answer
  • 4) Which is greater?<br> 2 or 208
    7·2 answers
  • Write the digits in the ten million place
    6·1 answer
  • Find sin(B) in the triangle.
    10·2 answers
  • A plant is already 54 centimeters tall, and it will grow one centimeter every month. The plant's height, H (in centimeters), aft
    15·1 answer
  • a firm wants to select a group of 8 out of its 20 employees to attend a Business trip .in how many ways can this be done if ther
    11·1 answer
  • Name the x- and y- intercepts for equation 2x- y=6
    8·2 answers
  • What angles are they ?
    14·2 answers
  • Find the distance between the points (-10, -9) and (-7, -1).
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!