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
sladkih [1.3K]
4 years ago
8

Solve the proportion 2/3=6/x+4

Mathematics
2 answers:
barxatty [35]4 years ago
5 0

Answer:

-9/5   or   -1.8  

Step-by-step explanation:

Solve the rational equation by combining expressions and isolating the variable  x .

jolli1 [7]4 years ago
3 0

Answer:

x = 5

Step-by-step explanation:

Given

\frac{2}{3} = \frac{6}{x+4} ( cross- multiply )

2(x + 4) = 18 ( divide both sides by 2 )

x + 4 = 9 ( subtract 4 from both sides )

x = 5

You might be interested in
Select the correct answer from each drop-down menu.
Sergeu [11.5K]

Using translation concepts, it is found that the transformations to create function d are given as follows:

  • Horizontal shift right 1 unit.
  • Vertical shift up 5 units.
  • Frequency multiplied by 2.

<h3>What is a translation?</h3>

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

In this problem, the parent cosine function is given by:

f(x) = cos(x).

The translated function is given by:

d(x) = cos(2x - 1) + 5.

Which means that:

  • 1 was subtracted in the domain, hence the was a horizontal shift right 1 unit.
  • 5 was added in the range, hence there was a vertical shift up 5 units.
  • There was a multiplication by 2 in the domain, hence the frequency is multiplied by 2.

More can be learned about translation concepts at brainly.com/question/4521517

#SPJ1

5 0
2 years ago
COSINE LAW: Solve triangle PQR. round angles to the nearest tenth​
Valentin [98]

Answer:

Hi,

Step-by-step explanation:

PR²=PQ²+QR²-2*PQ*QR*cos(51°)

=15²+12²-2*15*12*cos(51°)

=142,444659....

PR=11.9350...

PQ²=QR²+PR²-2*QR*PR*cos(R)

cos(R)=(12²+142.444...-15²)/(2*12*11.9350...)=0,21451112....

angle R=77,61315...°≈77.6°

angle P=180°-51°-77.6°≈51,4°

4 0
2 years ago
Modern medical advances might mean people could live 200 years. inâ 2009, the life expectancy is about 80 years. assumeâ that, d
olga2289 [7]
For this problem, we have to set up the formula for the equation first. The equation should help us predict how long would it take to reach a life expectancy of 130 years. Let's start by denoting variable to present them in algebraic equations. Let x be the number of decades, while y is the number of years for life expectancy. The base year used here is 2009 with a life expectancy of 80 years. So, we will expect that 80 is a constant in the expression. We will add to this the number of decades multiplied by 5.4, because it stands for 5.4 additional years per decade. When you write this in an equation, it would be

y = 80 + 5.4x

Now, we substitute y=130.

130 = 80 + 5.4x
x = (130 - 80)/5.4
x = 9.259 

Therefore, it would take approximately more than 9 decades. Projecting this amount of time from 2009, the year would be:

Projected year = 2009 + 9 decades * (10 years/1 decade)
Projected year = 2101

It would be in year 2101.
6 0
4 years ago
Is 1,815 a rational number?
rewona [7]
If a number can be represented by a fraction, it is a rational number. So yes, 1815 is a rational number
3 0
3 years ago
Read 2 more answers
(4a2 - 3b2)(16a4 +12a2b2 + 9b4)
Lynna [10]

Answer: the simplify anwser is 64a^ 6 - 27b^6

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Simplify: 7x^3+5x^2-2= [?]
    7·1 answer
  • Convert 84.5 into word form
    7·1 answer
  • A 6-sided die is rolled. what is the probability of rolling a 3 or a 6?
    9·1 answer
  • If you need 10.5 trees for 5 cabins,then how many do you need for 3 cabins?
    15·1 answer
  • What is 256 over 81 as a improper fraction
    11·1 answer
  • If all shoppers get 10% off their purchase today, what is the equation can be used to calculate the portion of the original pric
    11·1 answer
  • Calculate the mean of the following. 3,5,6,4,7,3,9,8​
    15·2 answers
  • Find the measures of a, b, c, and d.​
    12·1 answer
  • HELPP DUEE BY 1pm PACIFIC HELP ASAPP
    12·1 answer
  • Which type of statistical test is appropriate to analyze the primary efficacy endpoint in this study?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!