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
IceJOKER [234]
2 years ago
5

6y=x-18 3y=-15x+15 What is the value of x?

Mathematics
1 answer:
VLD [36.1K]2 years ago
3 0

Answer:

Step-by-step explanation:

You might be interested in
Louise has a $75 gift card for her favorite toy store. She buys a model car kit for $22.79 and a doll for $19.95. What is the re
Anni [7]

Answer:

Louise has a remaining balance of $32.76

Step-by-step explanation:

8 0
3 years ago
Write an explicit formula for the An, and the n^th term of the sequence 24,-12,6,....
Annette [7]

Answer:

T_n =  -48* (-\frac{1}{2})^{n}

Step-by-step explanation:

Given

24, -12, 6,...

Required

Write a formula

The above sequence shows a geometric sequence because:

r = \frac{-12}{24} = \frac{6}{-12} = -\frac{1}{2} -- common ratio

The equation is determined using:

T_n = ar^{n-1}

Where

a = 24

Substitute values for a and r

T_n = 24* (-\frac{1}{2})^{n-1}

Apply law of indices:

T_n = 24* (-\frac{1}{2})^{n} * (-\frac{1}{2})^{-1}

T_n = 24* (-\frac{1}{2})^{n} * 1/(-\frac{1}{2})

T_n = 24* (-\frac{1}{2})^{n} * 1*-2

T_n =  1*-2*24* (-\frac{1}{2})^{n}

T_n =  -48* (-\frac{1}{2})^{n}

<em>The above represents the explicit formula</em>

7 0
3 years ago
Really easy math question
Eddi Din [679]

Number of sodas sold = 130

Number of hot dogs sold = 65

Step-by-step explanation:

Given,

Combined number of sodas and hot dogs sold = 195

Let,

x represent the number of sodas sold

y represent the number of hot dogs sold

According to given statement;

x+y=195     Eqn 1

x = 2y        Eqn 2

Putting value of x from Eqn 2 in Eqn 1

2y+y=195\\3y=195

Dividing both sides by 3

\frac{3y}{3}=\frac{195}{3}\\y=65

Putting y=65 in Eqn 2

x=2(65)\\x=130

Number of sodas sold = 130

Number of hot dogs sold = 65

Keywords: linear equation, substitution method

Learn more about substitution method at:

  • brainly.com/question/12973601
  • brainly.com/question/13063819

#LearnwithBrainly

4 0
3 years ago
Read 2 more answers
Tom needs to buy four tickets at 16 dollars each with a service fee of 2.50 . Write an expression to solve for n
Lorico [155]

Answer:

16*4+2.50

Step-by-step explanation:

7 0
3 years ago
What is the second term in the binomial expansion of (2r-3s)12?
Reptile [31]
(a+b)^n=\displaystyle\sum_{k=0}^n\binom nka^{n-k}b^k

where \dbinom nk=\dfrac{n!}{k!(n-k)!}. The second term of the expansion occurs when k=1.

So the second term of the expansion of (2r-3s)^{12} is

\dbinom{12}1(2r)^{12-1}(-3s)^1=12(2r)^{11}(-3s)=-73728r^{11}s
5 0
3 years ago
Read 2 more answers
Other questions:
  • What additional information is needed to prove that the triangles are congruent using the asa congruence theorem?nl ≅ mpnk ≅ mqn
    14·2 answers
  • How do you decide whether a number is a solution of an inequality
    10·1 answer
  • Anna surveyed 50 students at her school and found that 0.72 of the students she surveyed said their favorite class is math. Anot
    12·2 answers
  • What ls 2x &gt; -10 and 9x &lt;18
    6·2 answers
  • What is the difference between -10 and five on a number line
    10·2 answers
  • What is 3.1 divided by 25.42
    9·2 answers
  • Need actual help (please hurry)
    10·1 answer
  • Help pleaaaase it’s urgent
    7·1 answer
  • Solve for x (28 POINTS)
    7·1 answer
  • There are 27 students in Manny's math class. Fourteen of the students are females. What is the ratio of males to females in Mann
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!