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
o-na [289]
4 years ago
12

Is 1/5 a solution of X+3/4-x=13/15

Mathematics
2 answers:
BartSMP [9]4 years ago
8 0
I do not think it is, because when you plug in 1/5 for X you do not get 13/15
WITCHER [35]4 years ago
3 0
(x + 3)/(4 - x) = 13/15
15(x + 3) = 13(4 - x)
15x + 45 = 52 - 13x
15x + 13x = 52 - 45
28x = 7
x = 7/28 = 1/4

Therefore, 1/5 is not a solution
You might be interested in
The minute hand of a clock is exactly 6in in length, and the tip of the minute hand has traveled ten inches since noon. What tim
frutty [35]
\bf \textit{arc's length}\\\\
s=\cfrac{\theta \pi r}{180}\qquad 
\begin{cases}
r=radius\\
\theta =angle\ in\\
\qquad degrees\\
------\\
r=6\\
s=10
\end{cases}\implies 10=\cfrac{\theta \pi 6}{180}\implies \cfrac{180\cdot 10}{6\pi }=\theta 
\\\\\\
\cfrac{300}{\pi }=\theta \implies 95.49^o\approx \theta

now, the circle of the clock has 360°, if we divide it by 60(minutes), we get 360/60, just 6° for each minute.

now, if there are 6° in 1 minute, how many minutes in 95.49°?

well, just 95.49/6 or about 15.92 minutes, I take it you can round it up to 16 minutes.

so 16 minutes since noon, so is about 12:16, about time get the silverware for lunch.
3 0
3 years ago
what is 79% of 800? that's all the questions but I can ask it cuz apparently it's to shirt but what is 79% of 800?​
ahrayia [7]

Answer:

the answer is 632

Step-by-step explanation:

that is %79 of 800

3 0
3 years ago
Read 2 more answers
A string is tied to the top of a plant to keep it stabilized. The plant is 5 feet tall and the string is connected to the ground
Rasek [7]
R<span> = √(2² + 5²) = √29 = 5 and change. Simple Pythagorean calc. Draw a picture and you will see it.</span>
4 0
3 years ago
Read 2 more answers
Which properties could you use to solve the following expression?
lesantik [10]

Answer:

associative only!!!!!!!!!!!!!

7 0
3 years ago
The following information was collected on 20 randomly chosen high school students, which compared their IQ score to musical apt
Mashcka [7]

Answer:

Y = 0.4925X - 22.26 ;

(-12.413, 13.398) ;

Yes, there is

Step-by-step explanation:

X = IQ Score ; Y = musical aptitude

The regression equation from the table given using the slope and intercept coefficient :

Y = 0.4925X - 22.26

0.4925 = slope ; Intercept = - 22.26

The 95% confidence interval of the slope :

Confidence interval = b ± Tcritical*SE

Tcritical at 95%, df = n - 2 = (20 - 2) = 18

Tcritical = 2.1009

b = slope Coefficient = 0.4925

S.E = 6.143

Hence, we have :

Confidence interval = 0.4925 ± (2.1009 * 6.143)

Confidence interval = 0.4925 ± 12.9058287

Lower boundary = 0.4925 - 12.9058287 = - 12.413

Upper boundary = 0.4925 + 12.9058287 = 13.398

(-12.413, 13.398)

There is a significant relationship between IQ score and musical aptitude because, 0 is within the confidence interval obtained.

6 0
3 years ago
Other questions:
  • Kylie has $70 to spend on clothes. She wants to buy a pair of jeans for $30 and spend the rest on t-shirts. Each t-shirt costs $
    7·2 answers
  • Two angles in a triangle add up to 115° what is the size of the third angle
    5·2 answers
  • 1) 9 1/3 - 2 2/3 <br> 2) 2 5/12 - 1 8/12
    14·1 answer
  • There are 18 women and 20 men in a room. Of the women, 10 are older than 35 years old. Of the men, 9 are older than 35 years old
    5·1 answer
  • In which place should you write the first digit of the quotient 4,085 ÷ 61?
    10·2 answers
  • If y varies directly as x, and y = 10 when x = 9, find y when x = 1/9
    11·1 answer
  • PLEASE HELP<br><br> What is the following product?
    10·1 answer
  • Tony is saving money to buy a game. So far he has saved S18, which is two-thirds of the total cost of the game. How much does th
    13·1 answer
  • I’m gonna be asking a lot of these so if your good at these then watch out for more! :)
    10·2 answers
  • The team is 52 yards away from a touchdown. Steve ran the football 26 yards toward the end zone, but on the next play Keith was
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!