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
AlekseyPX
3 years ago
7

Cual es el valor de x en 3x-15=2x+20

Mathematics
1 answer:
erastova [34]3 years ago
7 0

Answer:

x=35

Step-by-step explanation:

You might be interested in
On a hot summers day 262 people used the public swimming pool. The daily prices are 1.50 for children and 2.00 for adults. The r
ololo11 [35]
<h3>Answer:</h3>
  • 154 adults
  • 108 children
<h3>Step-by-step explanation:</h3>

Let x represent the number of adults who swam at the pool. Then (262-x) is the number of children. Multiplying these numbers by the corresponding admission charge will give the associated receipts. We are given the total of receipts, so we can write the equation ...

... 2.00x +1.50(262-x) = 470.00

... 0.50x +393.00 = 470.00 . . . . . simplify

... 0.50x = 77.00 . . . . . . . . . . . . . . .subtract 393

... 77.00/0.50 = x = 154 . . . . . . . . . divide by the coefficient of x

... (262-x) = 108 . . . . . . . . . . . . . . . .find the number of children admitted

8 0
3 years ago
The first person who answers this right gets 40 points
Alekssandra [29.7K]
It will take two years
3 0
4 years ago
The circular opening of an ice cream cone has a diameter of 7 centimeters. The height of the cone is 10 centimeters. What is the
Nataly [62]

We have been given that the circular opening of an ice cream cone has a diameter of 7 centimeters. The height of the cone is 10 centimeters. We are asked to find the volume of the ice cream cone in cubic centimeters.

We will use volume of cone formula to solve our given problem.

V=\frac{1}{3}\pi r^2h, where,

r = Radius

h = Height.

We know that diameter is two times the radius, so radius of cone would be half the diameter that is \frac{7}{2} cm.

V=\frac{1}{3}\pi\cdot (\frac{7}{2}\text{ cm})^2\cdot 10\text{ cm}

V=\frac{1}{3}\pi\cdot \frac{49}{4}\text{ cm}^2\cdot 10\text{ cm}

V=\frac{490\pi }{12}\text{ cm}^3

V=128.2817\text{ cm}^3

Upon rounding to nearest tenth, we will get:

V\approx 128.3\text{ cm}^3

Therefore, the volume of the cone would be approximately 128.3 cubic cm.

8 0
4 years ago
Which of the following is true regarding the solution to the logarithmic equation below? log Subscript 2 Baseline (x + 11) = 4.
meriva

Answer:

Option C.

Step-by-step explanation:

The given logarithmic equation is

\log_2(x+11)=4

It can be written as

(x+11)=2^4     [\because log_ax=y\Leftrightarrow x=a^y]

x+11=16

x=5

Now, to check whether x=5 is a true solution or not. Substitute x=5 in the LHS of given equation.

LHS=\log_2(5+11)

LHS=\log_2(16)

LHS=\log_22^4

LHS=4     [\because log_aa^x=x]

LHS=RHS

Hence, x=5 is a true solution because \log_2(16)=4.

Therefore, the correct option is C.

5 0
3 years ago
Timothy is repairing a picture frame. He will need 5 pieces of wood, each measuring foot in length. He is going to cut the 5 pie
Minchanka [31]
Tim will not have enough wood to make the 5 pieces. He will have 4 wood pieces a foot long each and a left over wood piece half a foot long.
8 0
4 years ago
Other questions:
  • 65/.25 pls help asap
    13·2 answers
  • 27800 in scientific notation
    15·1 answer
  • PLEASEEW HELPPP WILL MARK BRAINLEST !!pntss
    10·2 answers
  • R= <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B-1%7D%7Bq%7D%20st" id="TexFormula1" title=" \frac{-1}{q} st" alt=" \frac{-1}{q
    8·1 answer
  • Which expressions have a positive product? Select all that apply.
    15·1 answer
  • Directions "rewrite the standard form equations into slope intercept form" 2x+6y=-24
    7·1 answer
  • I had to write something here so ignore what I am going to say. NSDBHJFGDKTRTEWGSFZFGSDYJFH
    11·2 answers
  • Karen buys a water heater on clearance. It is 65% off the original price. If Karen pays $350, what was the original price?
    15·1 answer
  • Evaluate 3.2x0.4/<br> 0.016?​
    10·1 answer
  • What the avage of 87.25
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!