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
Whitepunk [10]
3 years ago
13

There were 72 runners to start a race. in the first half of the race, 13 of them dropped out. in the second half of the race, 23

of the remaining runners dropped out. how many runners finished the race?
Mathematics
1 answer:
Mariana [72]3 years ago
8 0
All you would need to to is do 13+23= 33 to get the total amount of people who dropped out, then do 72 ( the number in the beginning and subtract 33 from it because those are the people who dropped out so 72-33=39. 39 people finished the race.
You might be interested in
Ashley, tom, and pablo sent a total of 90 text messages over their cell phones during the weekend. pablo sent 6 fewer messages t
dalvyx [7]
Ashley sent 27 messages, Pablo sent 21, and Tom sent 42.
5 0
3 years ago
Evaluate x Square-4x for x=-7
Ivahew [28]
ANSWER:

(-7)^2-4*(-7)
=49+28
=77

Hope it helps u! :)
7 0
3 years ago
Read 2 more answers
Yo! Solving linear equations with integers! These are just some practice exercises I need help with! So they should probably be
drek231 [11]

Answer:

Step-by-step explanation:

<h3>Solving linear equation with one variable:</h3>

   1) -4 + 3x = 4x - 8

        Add 4 to both sides

      -4 + 3x + 4 = 4x - 8 +  4

               3x     = 4x - 4

Subtract 4x from both sides,

        3x - 4x = -4x + 4x - 4

              -x   = -4

                \sf \boxed{\bf x = 4}

2) -5x - 8 = 2

Add 8 to both sides

 -5x - 8 + 8 = 2 + 8

            -5x  = 10

Divide both sides by (-5)

            \sf \dfrac{-5}{-5}x =\dfrac{10}{-5}

                 \sf \boxed{\bf x = -2}

3) 12r - 14 = 5(2-r)

    12r - 14 = 5*2 - 5*r

     12r - 14 = 10 - 5r

Add 14 to both sides

 12r - 14 + 14 = 10 - 5r + 14

             12r  = 24 - 5r

Add 5r to both sides

        12r + 5r = 24

               17r = 24

Divide both sides by 17

                 r = 24/17

4) 3x - 8 = -(17 + 2x)

  3x - 8 = -17 - 2x

Add 8 to both sides

3x - 8 + 8 = -17 - 2x + 8

           3x = -9 - 2x

Add 2x to both sides

      3x + 2x = -9

            5x  = -9

Divide both sides by 5

              \sf \dfrac{5}{5}x=\dfrac{-9}{5}\\\\\boxed{x = \dfrac{-9}{5}}

3 0
2 years ago
Read 2 more answers
Plzzzzzzzzzzzzz helpppppppppppppp
Ierofanga [76]
Heyyyoooooooooo I got youuuuuu giveeee meeee a second pleaseeeeeee
6 0
3 years ago
Read 2 more answers
Mathematics I don t understand please help
Fed [463]

Answer:

1. y=3x-2 -> x= (y+2)/3

Step-by-step explanation:

You simply sub-in the m and b, then "reverse" the problem by doing the steps to get from the 2nd, to the first.

3 0
3 years ago
Read 2 more answers
Other questions:
  • In common core how do you use dominoes
    5·1 answer
  • Quadilateral ABCD is similar to quadilateral EFGD <br><br> Help?
    9·2 answers
  • A researcher wishes to investigate differences in college admission rates between students at two high schools. She randomly sel
    9·2 answers
  • Solve the equation for the indicated variable.
    10·2 answers
  • Assume that a student is chosen at random from a class. Determine whether the events and are independent, mutually exclusive, or
    6·1 answer
  • Please Help ASAP!!
    11·1 answer
  • What is 123×553×9953×2020×0×01235=
    5·1 answer
  • PLEASE HELP DUE TOMORROW!!! real estate sales agent receives a salary of $250 per week plus a commission of 2% of sales. Write a
    6·1 answer
  • 3+3/4x= 7/10 do not use decimals in your answer
    13·1 answer
  • Please help me with this question!
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!