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
Salsk061 [2.6K]
3 years ago
13

While watching a circus show, I counted out the number of acrobats and elephants. I counted 40 legs and 15 heads. How many acrob

ats did I see in the show?
Mathematics
1 answer:
Goryan [66]3 years ago
5 0

Answer:

y=10 ( number of acrobat)

Step-by-step explanation:

let x be the elephant and y the acrobat

elephant has 4 legs and acrobat 2

4x+2y=40

x+y=15  ⇒x=15-y

substitute for x in the equation:

4(15-y)+2y=40

60-4y+2y=40

-2y=40-60

y=-20/-2

y=10 ( number of acrobat)

number of elephant=15-10=5 elephants

You might be interested in
Write is the formula for the discriminant?
Svetlanka [38]

Answer:

The number D = b2 – 4ac determined from the coefficients of the equation ax2 + bx + c = 0. The discriminant reveals what type of roots the equation has. Note: b2 – 4ac comes from the quadratic formula.

Hope this helps please mark me as brainliest

5 0
3 years ago
Read 2 more answers
Write a fraction for the portion of the grid that is NOT shaded.
Aneli [31]

7

15

because there are a total of 15 grid and the question asked to pick the grid that doesn't shaded

5 0
3 years ago
Read 2 more answers
Really need help! Brainliest to correct!
zlopas [31]

Answer:

<u>Given</u>:

  • R(x) = 59x - 0.3x²
  • C(x) = 3x + 14

<u>Find the following</u>:

  • P(x) = R(x) - C(x) = 59x - 0.3x² - 3x - 14 = -0.3x² + 56x - 14
  • R(80) = 59(80) - 0.3(80²) = 2800
  • C(80) = 3(80) + 14 = 254
  • P(80) = 2800 - 254 = 2546
7 0
3 years ago
Find the area of the shaded polygon.
Inessa [10]

Answer:

  • 8 square units

Step-by-step explanation:

Split the polygon into 3 triangles as pictured below

<u>They have base and height:</u>

  • 4 and 3, 1 and 1, 3 and 1

<u>Find the area of 3 triangles and add up:</u>

  • A = 1/2bh
  • A = 1/2*4*3 + 1/2*1*1 + 1/2*1*3 = 6 + 1/2 + 3/2 = 8 square units

6 0
3 years ago
Read 2 more answers
What is the answer for this question
VikaD [51]

i think the answer is c :)

6 0
3 years ago
Read 2 more answers
Other questions:
  • Li is watering the plants in her garden. Her watering can hold 7 litres of water. She refilled the watering can 4 times. How man
    12·1 answer
  • A square plywood platform has a perimeter which is 8 times the length of a side, decreased by 12. Find the length of a side.
    7·1 answer
  • with the major options package and destination charge, a sports car costs $24,416. the base price of the car was ten times the p
    10·1 answer
  • Points A (-10,-6) and B (6,2) are the endpoints of AB. What are the coordinates of point C on AB such that AC is 3/4 the length
    14·1 answer
  • I need the answer please help
    10·1 answer
  • Really need a definite correct answer on this
    13·1 answer
  • 64 rounded to the neareat ten
    14·1 answer
  • 6(n + 5) = 2(n + 5) + 4(n + 5) <br> Are these two Equivalent
    8·2 answers
  • Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
    6·1 answer
  • A 95% confidence interval for a population mean is determined to be 100 to 120. If the sample size was incorrectly recorded as 1
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!