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
Roman55 [17]
3 years ago
8

Laura, David, and Carlos served a total of 115 orders Monday at the school cafeteria. David served 3 times as many orders as Car

los. Laura served 10 more orders than Carlos. How many orders did they each serve?
Mathematics
1 answer:
Korvikt [17]3 years ago
4 0

Answer:

Step-by-step explanation:    ts  6  11    19    56

Laura, David, and Carlos served a total of 115 orders

David served 3 times as many orders as Carlos.                 David = 3x

Laura served 10 more orders than Carlos.                      let Carlos = x

How many orders did they each serve?                           Laura  =  x + 10

     Carlos  +  David  +  Laura  = 115

          x  +     3x    +    x+10       = 115

                        5x + 10     =  115

                               5x   =  115 - 10

                               5x   =  105

                                x   =   21    Carlos

                                          63   Davide

                                          31    Laura

                 add then up    115  Total

You might be interested in
Which ordered pair is a solution to this system of equations. 7x+5y=59 and 3x-9y=159
alina1380 [7]
Your is answer should be D
7 0
3 years ago
Read 2 more answers
How many solutions does the linear system below have? -8x+2y=6 and -4x+y=3
Verizon [17]

Answer:

Step-by-step explanation:

Try dividing the first equation by 3.  The result will be identical to the second equation.  Thus, we have two lines that coincide, and therefore there are an infinite number of solutions.

7 0
2 years ago
Jake carries a green and yellow and a black guitar pick in his pocket he randomly chooses a guitar pick from his pocket before e
e-lub [12.9K]
The answer is 1/3...I got this question on I-ready and I hate when I don't pass a lesson...hope this will help you guys out.
8 0
3 years ago
Read 2 more answers
Can someone help me please
Lelechka [254]

Answer:

Step-by-step explanation:

6 0
3 years ago
What two numbers add to 8 and multiply to 28
anygoal [31]
Find numbers that multiply to 28 and add them to see if they add to 8
28=
1 and 28=29 not 8
2 and 14=16 not 8
4 and 7=11 not 8
that's it'
no 2 numbers
we must use quadratic formula

x+y=8
xy=28

x+y=8
subtract x fromb oths ides
y=8-x
subsitute
x(8-x)=28
distribute
8x-x^2=28
add x^2 to both sides
8x=28+x^2
subtract 8x
x^2-8x+28=0

if you have
ax^2+bx+c=0 then x=\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}
so if we have
1x^2-8+28=0 then
a=1
b=-8
c=28

x=\frac{-(-8)+/- \sqrt{(-8)^{2}-4(1)(28)} }{2(1)}
x=\frac{8+/- \sqrt{-48} }{2}
x=\frac{8+/- 4 \sqrt{-3} }{2}
x=4+/- 2 \sqrt{-3}
x=4+/- 2i \sqrt{3}
there are no real numbers that satisfy this
5 0
3 years ago
Other questions:
  • in a talent competition, half of the contestants are eliminated in each round. At the end of the nth round, 32 contestants remai
    14·1 answer
  • The difference in the x-coordinates of two points is 3. and the difference in the y-coordinates of the two points is 6
    6·2 answers
  • 3×2+4×5=70 prove it's true by adding a bracket​
    6·1 answer
  • Is 7/20 equivalent to 7 hundreds
    8·1 answer
  • The sum of an irrational number and a rational number is irrational. Sometimes True Always True Never True
    9·2 answers
  • what is 25÷405 please help I don't get it :-( But my teacher says there is not suppose to be a remainder
    12·2 answers
  • 100 points to Answer Please
    14·2 answers
  • An airplane flies at a constant speed of 760 miles per hour. How long will it take to travel a distance of 3040 miles?
    7·1 answer
  • Find the area of this trapezoid​
    8·1 answer
  • In circle R with mZQRS = 112 and QR
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!