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
slava [35]
3 years ago
11

Help!! I’ve tried solving this multiple different way.

Mathematics
1 answer:
user100 [1]3 years ago
3 0
The correct answer is:

X=15
You might be interested in
What is the angle of B?​
amid [387]

Answer:

31

Step-by-step explanation:

4 0
3 years ago
Write ab in terms of a and b
baherus [9]

Answer:

a multiple b

Step-by-step explanation:

a x b = ab

eg. a = 5 , b = 2

ab = 5x2

8 0
2 years ago
Read 2 more answers
Rae runs 4 times as many miles as Madison and Aaliyah combined. Madison runs m miles, and Aaliyah runs a miles.
mash [69]

Answer:  4(m+a)

Step-by-step explanation:

<h3> The complete exercise is: "Write an expression using letters and/or numbers for each problem below"</h3>

For this exercise it is necessary to remember the following:

1. The word "times" indicates multiplication,

2. The word "combined" indicates addition.

In this case let "m" represents the amount of miles that Madison runs and let "a" represents the amount of miles that Aaliyah runs.

Based on the explained above, you know if the amount of miles that Madison runs and the amount of miles that Aaliyah runs are combined (or in other words, they are added), then the expression that represents this would be:

m+a

Therefore, you can determine that "4 times as many miles as Madison and Aaliyah combined", can represented with the following expression:

4(m+a)

6 0
3 years ago
Help i dont understand how to complete this
Luda [366]

Answer: Josh = 19.8 hours, Danny = 10.8 hours

<u>Step-by-step explanation:</u>

Josh: \dfrac{1}{x+9}\\\\\\Danny: \dfrac{1}{x}\\\\\\Together: \dfrac{1}{7}\\\\\\Josh\quad + \quad Danny\quad =\quad Together\\\dfrac{1}{x+9}\quad +\qquad \dfrac{1}{x}\qquad = \qquad \dfrac{1}{7}\\\\\\\underline{\text{Clear the denominator by multiplying by the LCM: (x+9)(x)(7)}}\\\\7(x) + 7(x+9)=x(x+9)\\7x + 7x + 63 = x^2+9x\\14x+63=x^2+9x\\0=x^2-5x-63\\\\\\\underline{\text{Use the quadratic formula to solve for x: }}x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

x=\dfrac{-(-5)\pm \sqrt{(-5)^2-4(1)(-63)}}{2(1)}\\\\\\.\quad =\dfrac{5\pm\sqrt{25+252}}{2}\\\\\\.\quad =\dfrac{5\pm\sqrt{277}}{2}\\\\\\.\quad =\dfrac{5\pm 16.6}{2}\\\\\\x =\dfrac{5+16.6}{2}\qquad x=\dfrac{5-16.6}{2}\\\\\\x=\dfrac{21.6}{2}\qquad \qquad x=\dfrac{-11.6}{2}\\\\\\x=10.8 \qquad \qquad x=-5.8

Since time cannot be negative, x=-5.8 is an extraneous solution (not valid) so x = 10.8

Josh: x + 9   -->   10.8 + 9   =   19.8

Danny: x     -->    10.8

****************************************************************************************

2a) k = 9.45 & 0.55

2b) x = 3/2

2c) x = 2/3     <em>(x = -1 is an extraneous solution so is not valid)</em>

2d) No Solution   <em>(x = 1 is an extraneous solution so is not valid)</em>

Here is the work for 2a.  Follow this format for b, c, & d

\dfrac{3}{k^2-8x+12}=\dfrac{k}{k-2}-\dfrac{4}{k-6}\\\\\text{Since the denominator cannot equal zero, then } k \neq2\ and\ k\neq6\\\text{If either of the solutions are 2 or 6, then that solution needs to be crossed out}\\\\\underline{\text{Clear the denominator by multiplying by the LCM: (k-2)(k-6)}}\\\\3 = k(k-6)-4(k-2)\\3=k^2-6k-4k+8\\0=k^2-10k+5\\\\\\\underline{\text{Use the quadratic formula to solve for k}}

x=\dfrac{-(-10)\pm \sqrt{(-10)^2-4(1)(5)}}{2(1)}\\\\\\.\quad =\dfrac{10\pm\sqrt{100-20}}{2}\\\\\\.\quad =\dfrac{10\pm\sqrt{80}}{2}\\\\\\.\quad =\dfrac{10\pm8.9}{2}\\\\\\x=\dfrac{10+8.9}{2}\qquad x=\dfrac{10-8.9}{2}\\\\\\x=\dfrac{18.9}{2}\qquad x=\dfrac{1.1}{2}\\\\\\x=9.45\qquad x=0.55\\\\\\\text{Both answers are valid!}

8 0
3 years ago
A machine cuts a strip of carpet into two pieces. The length of the smaller piece is 5 meters greater than the length of the lar
Thepotemich [5.8K]

Answer:

14 and 26

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Geometry
    13·2 answers
  • What is the probability of rolling an even prime number with one toss of a die?<br><br> Thanks!!!
    7·1 answer
  • Solve the system of equations. 4x + 2y = –14 6x + 3y = –22 (0, –7), (–1, –6), no solutions, infinitely many solutions. Plz and T
    12·2 answers
  • If you earn a commission of $150.00 per course that you sell on the internet, and you have sold 112 courses, what is your commis
    9·2 answers
  • Need help with this one
    6·1 answer
  • The sum of a number times 9 and 22 is at most – 28.
    14·1 answer
  • Describe the trend in the scatterplot. How do the variables relate to each other?
    5·2 answers
  • Find the measure of the arc or central angle indicated. Need by today thx.
    11·2 answers
  • -6y -8 = -18<br> can anyone solve this
    15·2 answers
  • The management also wants you to run descriptive statistics for the relative skill of the Bulls from 1996-1998. Calculate descri
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!