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
Travka [436]
3 years ago
12

'Five times a number minus eight is 17.5.

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
8 0

Answer:

5.1

Step-by-step explanation:

you need to work backwards.

so do 17.5 + 8 then divide by 5 to get 5.1

i hope this helps :)

You might be interested in
The water level of a pond rises an inch every 16 days
Scilla [17]

Answer:

16 weeks

Step-by-step explanation:

7 inches rise

7x16days = 112 days

112 days / 7 days = 16 weeks

5 0
4 years ago
The sum of two numbers is 36. their difference is 4. determine the two unknown numbers.
Rasek [7]
So you know if a and b are the numbers that a+b=36 and a-b=4 so you can solve one I solved the second equation for a a=4+b and plugging that a value into equations gives you 4+b+b=36
This simplified to 4+2b=36
2b=32
B=16 so you know one number is 16 and you can plug it in to find a a-16=4 so a=20

Therefore the two numbers are 16 and 20
6 0
4 years ago
Determine en donde la funcion dada es creciente,concava hacia riba y concava hacia abajo. y= x3–3x–1
Minchanka [31]

Answer:

Es creciente en los siguientes intervalos: [-\infty,-1] U [1,\infty]

Es concavo hacia abajo en el intervalo: [-\infty,0)

Es concavo hacia arriba en el intervalo: (0,\infty]

Step-by-step explanation:

Sea la función:

f(x)=x^{3}-3x-1

Para determinar el intervalo de crecimeinto debes determinar la primer derivada de la función (f'(x)). El intervalo donde f'(x) > 0 es creciente.

La derivada de f(x) es:

f'(x)=3x^{2}-3

Entonces es creciente en los siguientes intervalos:

[-\infty,-1] U [1,\infty]    

Ahora para determinar la concavidad debemos determinar la segunda derivada de la función (f''(x)). Si f''(x) > 0 la función es concava hacia arriba, si f''(x) < 0 la funcion es concava hacia abajo.

La segunda derivada de f(x) es:

f''(x)=6x        

Por lo tanto:

Es concavo hacia abajo en el intervalo: [-\infty,0)

Es concavo hacia arriba en el intervalo: (0,\infty]

Espero te haya ayudado!

8 0
3 years ago
To convert 2,999 hm to dm, you would move the decimal point _____ places to the _____.
Grace [21]
Move the decimal point 3 places to the right
8 0
4 years ago
In 3-way light bulbs, the highest wattage is the sum of the two lower ones. If the lowest is 60 watts, and the highest 150 watts
otez555 [7]
Since 150= 60 +x
x=110
3 0
4 years ago
Other questions:
  • I need help with 16 through 29
    13·1 answer
  • Write 3 other fractions that are equivalent to the given fraction. Include simplest Ford of the fraction
    14·1 answer
  • Mr. Smith has 5 acres of land for sale. He divided the land into 3-acre lots. How many lots are for sale?
    9·1 answer
  • Can someone please show the work when doing this !
    6·1 answer
  • Write the equation of the line, in slope-intercept form, with the
    6·1 answer
  • The table shows the height of water in a pool as it is being filled. A table showing Height of Water in a Pool with two columns
    7·1 answer
  • Jasper needs 180 of string for his project how many yards did he buy.
    5·1 answer
  • Please help me asap!!!!
    7·1 answer
  • The roots of a quadratic function are 6 and -2. Which is a possible vertex of the function?
    7·1 answer
  • Round 6,311 to the nearest thousand ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!