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
ra1l [238]
3 years ago
6

Find the numbers in d blank

Mathematics
2 answers:
slega [8]3 years ago
6 0
Lets say:
Top row: a + b = 8
bottom row: c - d = 6 
left column: a + c = 13
right column: b + d = 8

As you know: a + b = 8 
Also               b + d = 8 
so from here we know a = d  

c -d = 6  then---> c - a = 6 (because a = d)  -> a = c - 6
We know a + c = 13 then
              (c - 6) + c = 13
              2c -6 =13
              2c = 19
               c = 19/2 = 9.5
             
but c - a = 6
      9.5 - a = 6
       a = 9.5 - 6 =3.5 

but a =  d = 3.5

a + b = 8
3.5 + b = 8
b = 8 -3.5 = 4.5

so a = 3.5, b = 4.5, c = 9.5, d = a = 3.5

Result:
a + b = 3.5 + 4.5 =8
c - d = 9.5 - 3.5 = 6
a + c = 3.5 + 9.5 = 13
b + d = 4.5 + 3.5 = 8




Hunter-Best [27]3 years ago
5 0
The missing numbers would be 12-6
You might be interested in
The mean of four numbers is 70. The mean increases to 80 when a fifth number is added. What is the fifth number?
irga5000 [103]
The fifth number is 90
7 0
4 years ago
6. What unknown number makes<br> this equation true?<br> 633 - 23 = 613 -
solniwko [45]

Answer:

633-23=613-3

Just solve for each side then find what makes them equal.

4 0
3 years ago
Read 2 more answers
Sanjaya is making a punch. He uses 1/3 c of pineapple juice for every 3/4 c of orange juice. How many cups of pineapple juice do
kramer

Answer:

Sanjaya is making a punch. He uses 1/3 c of pineapple juice for every 3/4 c of orange juice. How many cups of pineapple juice does he need if he uses 3 c of orange juice? Show your work.

8 0
3 years ago
For the given maximization​ problem, (a) determine the number of slack variables​ needed, (b) name​ them, and​ (c) use slack var
sergij07 [2.7K]

Answer:

a) 2

b) s₁    and   s₂

c)  First linear equation:     5*x₁  +  8*x₂ + 10*x₃ + s₁  = 173

   Second linear equation:   5*x₁  + 4*x₂  + 17*x₃  + s₂  = 254

Step-by-step explanation:

The problem statement, establishes two constraints, each one of them will need a slack variable to become a linear equation, so the answer for question

a) 2.

b)  The constraints are: s₁  and  s₂

c) First constraint

5*x₁  +  8*x₂ + 10*x₃ ≤ 173

We add slack variable  s₁   and the inequality becomes

5*x₁  +  8*x₂ + 10*x₃ + s₁  = 173

The second constraint is:

5*x₁  + 4*x₂  + 17*x₃ ≤ 254

We add slack variable  s₂   and the inequality becomes

5*x₁  + 4*x₂  + 17*x₃  + s₂  = 254

7 0
3 years ago
Read 2 more answers
Which of the following is an input value based on this set of ordered pairs? (3,4), (-5, 7), (8, -1) answers 4 ,-1 ,8 ,7
Natasha_Volkova [10]
8 is the only input value listed in the answers.
7 0
2 years ago
Other questions:
  • 7x+2y=-19 -x+2y=21 i need the substitution
    8·1 answer
  • Every month, Ms. Thomas pays her car loan through automatic payments (withdrawals) from her savings account. She pays the same a
    9·1 answer
  • Six more than the product of a number and 2 is 3
    12·1 answer
  • the slope of a graphed line is 2/3 and the y-intercept is (0,4) what is the slope-intercept equation of the line​
    9·1 answer
  • what is the answer to razz using the 6 inch square tiles to make a rectangle as shown below what is the perimeter of the rectang
    12·1 answer
  • EASY MATH NEED HELP BC I FORGOT HOW TO DO IT LOL
    12·1 answer
  • at a certain time of day, a 30- foot building casts a 10 foot shadow. how tall is a person who casts a 2 foot shadow
    6·1 answer
  • What are the coordinates of point of Y
    8·2 answers
  • Cars and truckd are the most popular vechicles last year the nunber of cars sild was 39,000 more then three times the number of
    9·1 answer
  • Solve this equation: <br> x/5=-7
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!