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
ale4655 [162]
3 years ago
10

Six people are standing in line for concert tickets. Their average age is 27. The average age of the first four people in line i

s 23. The average age of the last three p pole is 34 how old is the fourth person in line?
Mathematics
1 answer:
scZoUnD [109]3 years ago
6 0
<span>Let the age of the 4th person be F
Sum of the 1st four in line: 4(23), or 92
Sum of 1st 3: 92 - F (excludes the 4th person's age)
Sum of the last 3 in line: 3(34), or 102
</span><span>Sum of last 2: 102 - F (excludes the 4th person's age)
Sum of all 6: 6(27), or 162 (INCLUDES 4th person's age)
We now get: F + 92 - F + 102- F = 162
- F + 194 = 162
- F = 162 - 194
- F = - 32
F, or 4th person's age = -32/-1, or 32

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

</span>
You might be interested in
Would someone be able to tell me how to factorise? step by step??
CaHeK987 [17]
1. Factor out the greatest common factor (GCF). (There will not always be one). 2. Count the number of terms.
3. Check to be sure each factor is prime, if not, repeat 1-3.
4. Check by multiplying the factors out to see if you get the original polynomial.
5 0
3 years ago
Read 2 more answers
Select the property that allows the statement 3=x to be written x=3
laiz [17]

My guess would be distributive. i maybe be wrong so don't get mad if I'm wrong.

3 0
3 years ago
what is the volume of the cylinder shown below to the nearest hundredth of a cubic meter 3.5 m w 2 m height ​
Studentka2010 [4]

Answer:

The answer is 76.97

Step-by-step explanation:

The formula that I used

V=πr^2h

Volume = π·3.52·2 ≈ 76.96902

4 0
3 years ago
Read 2 more answers
An 8 kg box is at rest and is pushed for 10 m with a 60 N force. If it's accelerated to 10 m/s, calculate the efficiency of the
wlad13 [49]

Answer:

  2/3

Step-by-step explanation:

The work done on the box is ...

  Fd = (60 N)(10 m) = 600 N·m = 600 J

The amount of energy the box has as a result is ...

  KE = 1/2mv² = (1/2)(8 kg)(10 m/s)² = 400 kg·m²/s² = 400 J

The ratio of box energy to energy input is ...

  η = (400 J)/(600 J) = 2/3 . . . ≈ 66.7%

4 0
3 years ago
What is the solution set for the open sentence, using the given replacement set ?
77julia77 [94]

Answer:

x = 3

Step-by-step explanation:

first move 7 into RHS in addition

then move t into RHS in division

4 0
2 years ago
Other questions:
  • A tooth-whitening gel is to be tested for effectiveness. A group of 85 adults have volunteered to participate in the study. Of t
    8·1 answer
  • The formular f = 9c/5 + 32 converts temperature in degrees Celsius into temperature in degrees Fahrenheit use the formula to fin
    13·1 answer
  • Which is part of the hydrosphere
    5·2 answers
  • A balloon is 300 feet above a cliff. The angle of depression to the cliff edge is 40° 30'. What is the horizontal distance from
    12·1 answer
  • A superhero recently asked his nemesis how many cats she has. She answered with a​ riddle: ​"One-half of my cats plus two​."
    10·2 answers
  • A watch was on sale for 70% off. The sale price is $60. What was the original price?
    9·1 answer
  • 1. What is the radius of the red circle?
    6·1 answer
  • Which formula can be used to describe the sequence?
    8·1 answer
  • KM and NP are parallel lines. which angles are supplementary angles?
    8·1 answer
  • Prove that, for all positive values of n,
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!