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
FrozenT [24]
3 years ago
5

L'età media di Aldo, Bruno, Carlo e Davide è 16 anni. Se non si tiene conto di Davide, l'età media dei tre rimanenti sale a 18.

Qual è l'età di Davide? ​
Mathematics
1 answer:
photoshop1234 [79]3 years ago
4 0

Answer:

Davide's age is 10.

L'età di Davide è 10.

Step-by-step explanation:

The average age of Aldo, Bruno, Carlo and Davide is 16 years.

I am going to say that:

x is Aldo's age.

y is Bruno's age.

z is Carlo's age.

w is Davide's age.

Average of the 4 is 16 years.

This means that:

16 = \frac{x + y + z + w}{4}

x + y + z + w = 64

If we do not consider Davide, the mean is 18. So

18 = \frac{x + y + z}{3}

x + y + z = 54

Replacing in the first equation:

x + y + z + w = 64

54 + w = 64

w = 10

Davide's age is 10.

L'età di Davide è 10.

You might be interested in
Por favor es para hoy. El papá de Rafael va a construir una piscina afuera de su casa en forma de un cuadrado con el área de 121
nydimaria [60]

Answer:

For an inground pool, a patio area ranges between $3 and $40 per square foot. That wide range depends largely on the materials you use to build the space.

Para una piscina enterrada, el área de un patio varía entre $ 3 y $ 40 por pie cuadrado. Esa amplia gama depende en gran medida de los materiales que utilice para construir el espacio.

Step-by-step explanation:

pls give me brainliest

por favor, dame lo más inteligente

5 0
3 years ago
PLZ PLZ PLZ ANWSER I BEGGing From 2003 onward, the number of daily visitors to a website increased by 200 every two years. So, f
melisa1 [442]
All I know is its 2009
4 0
3 years ago
Math help on this question!
NemiM [27]

Answer:

none

Step-by-step explanation:

110 + 60 = 170

but 170 is obviously not 180 sooo none will be 60 degrees

6 0
3 years ago
Which expression is a factor of 9x^2-4x+1 ( ps ^2 is an exponent)
erastovalidia [21]

Answer:

The discriminant b2−4ac < 0, the equation has no real number solutions, it has complex solutions

Step-by-step explanation:

9x² - 4x + 1 = 0     ax² + bx + c = 0

The discriminant: b² - 4ac = (-4)² - 4*9*1 = 16 - 36 = -20

b2−4ac < 0, the equation has no real number solutions, it has complex solutions

3 0
3 years ago
What is the range of 2 4 2 6 1
sashaice [31]
4 6-2 = 4 you subtract the largest and smallest number to get the answer
6 0
3 years ago
Read 2 more answers
Other questions:
  • I HONESTLY NEED HELP!!
    12·1 answer
  • ⦁ Find the area of the trapezoid. Show your work and explain how you solved using First, Next, and Last. (Please help! and thank
    6·1 answer
  • The slope of the trend line is 15. What does that mean in regard to the data of the scatterplot? Check all that apply.
    8·2 answers
  • Apply the distributive property and the greatest common factor to write an equivalent expression.
    12·2 answers
  • PLEASE HELP ASAP!!
    6·1 answer
  • There are 6 times as many males as females on the maths course at university what fraction of the course are male?
    7·1 answer
  • Isabel Moreno<br> Simplify: (5p? +7 – 3p' – 5p)+(-7p* – 3p²-9-5p)
    10·1 answer
  • What is 324x11=? I need help
    10·1 answer
  • 6ya +7y{a<br> Find the sum<br> O 13y^2<br> O O 13ay<br> O 13y/2a<br> 0 13ya
    8·1 answer
  • Determine whether each relation is a function
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!