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
allsm [11]
3 years ago
11

Evaluate the following when x = 3 2x+ 5(x)

Mathematics
1 answer:
Nina [5.8K]3 years ago
4 0

Hi!

I can help you with joy!

Evaluate:

\fbox{2x+5x} when \fbox{x=3}

First, add x's:

\rm{7x}

Now, plug in the value of x (3)

\rm{7(3)

Multiply:`

\rm{21} (Answer)

Hope it helps!

Ask me if you have any doubts.

  • Enjoy Your Day/Night! :)

<em>Answered by</em>

<em>~</em>Silent~

You might be interested in
Can someone explain to me how I solve this problem. need íԵ as soon as possible. please help!❤️
densk [106]
It says how many pizza was LEFT not how much they ate so there 13 pieces left over
3 0
3 years ago
Jen solved the equation 100-1/2x=92 to determine the number of questions, x , she answered incorrectly on a text
Scorpion4ik [409]

The given equation is ⇒ 100 - (1/2) x = 92

100 - (1/2) x = 92  ⇒ Add (-100) to both sides

-100 + 100 - (1/2) x = 92 - 100

∴ -(1/2) x = -8           ⇒ Multiply both sides by (-2)

∴ -2 * (-1/2) x = -8 x -2

∴ x = 16


So, the value of  x will be equal 16

7 0
3 years ago
How can logarithms be graphed with different bases? How do transformations affect the logarithmic graph?
Natali5045456 [20]
To graph with different bases, use the change of base formula.
Transformations may move the parent function. 
3 0
3 years ago
Read 2 more answers
What is 400 divided by 10 to the third power equal?
Setler79 [48]
2/5 or 0.4 is the answer to your question
3 0
3 years ago
David wants to build a rectangular fencing with the 5 identical parts for his animals. He has 780 feet of fencing to make it. Wh
Vladimir79 [104]

Answer:

65 ft by 39 ft

Step-by-step explanation:

Let x ft be the length of each part and y ft be the width of each part. The total perimeter of all 5 parts is

6x+10y=780

The length of the large rectangle is 5y ft and the width of the large rectangle is x, so the total area is

A=x\cdot 5y

From the first equation,

y=78-0.6x

Substitute it into the area expression:

A(x)=x\cdot 5(78-0.6x)=390x-3x^2

Find the derivative:

A'(x)=390-3\cdot 2x=390-6x

Equate it to 0:

390-6x=0\\ \\6x=390\\ \\x=65

Then

y=78-0.6\cdot 65=78-39=39

5 0
3 years ago
Other questions:
  • Which statement is true for all similar figures.
    12·2 answers
  • What is the mixed number 25/16
    11·2 answers
  • HELP PLEASE which of the following expression represents the width of the door ?
    13·1 answer
  • The population of a country in 1950 was
    11·1 answer
  • The table contains a hospital's probability distribution chart of the number of babies born per day for a week. Determine the mi
    13·1 answer
  • Kelly has ¾ of a pie left. She wants to split the pie with 3 of her friends. How much of the pie will each person get?
    10·1 answer
  • Find the Values of x and y
    6·1 answer
  • 46°<br> Х<br> &gt;<br> X =<br> degrees<br> Hshshshsus
    6·1 answer
  • 2 candy bars cost $0.98. At this rate, how much do 5 candy bars cost? The total cost for five candy bars is?
    15·1 answer
  • The recursive formula for an arithmetic sequence is:
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!