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
ANTONII [103]
3 years ago
10

The ratio of the numerator and denominator of a rational number is 2 : 7 and

Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0

Answer:

6/21.

Step-by-step explanation:

let the rational number be 2x/7x.

2x + 4 / 7x - 2 = 10 /19

Cross multiply:

19(2x + 4) = 10(7x - 2)

38x + 76 = 70x - 20

96 = 70x - 38x

32x = 96

x = 3.

So the rational number is  2*3/ 7*3

= 6/21.

You might be interested in
9/20
NISA [10]

For this case we must find the solution of the following quadratic equation:

x ^ 2 + 5x + 7 = 0

Where:

a = 1\\b = 5\\c = 7

Then, the solution is given by:

x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}

Substituting the values:

x = \frac {-5 \pm \sqrt {5 ^ 2-4 (1) (7)}} {2 (1)}\\x = \frac {-5 \pm \sqrt {25-28}} {2}\\x = \frac {-5 \pm \sqrt {-3}} {2}

By definition we have:i ^ 2 = -1

x = \frac {-5 \pm \sqrt {3i ^ 2}} {2}\\x = \frac {-5 \pm i \sqrt {3}} {2}

Thus, we have two complex roots.

Answer:

The equation has no real roots.

4 0
3 years ago
2x+4-3x=-11 what is the answer
Pie
You want the xs and the numbers on different sides. 
2x-3x=-11-4
-x=-15
divide x by a -1
x=15
8 0
3 years ago
Read 2 more answers
if it took 9 hours to mow 15 lawns, then at that rate, how many lawns could be mowed in 27 hours? What was the rate of lawns mow
sammy [17]

Answer:

Step-by-step explanation:

15lawns/9hours= 1.6 lawns mowed per hour

1.6lph*27hours=43.2 lawns

6 0
3 years ago
Graph the linear equation. Find three points that solve the equation, then plot on the graph. -3y=x-6
nata0808 [166]

Answer:

Step-by-step explanation:                               x - 6

The given equation can be re-written as y = ---------                              

                                                                             -3

Arbitrarily choose x = 0.  Then:

      x - 6         0-6

y = --------- = ----------- = 2, so (0, 2) is a point on the graph which is also the                              

          -3            -3                                                                  y-intercept

Arbitrarily choose x = 6.  Then y = 0, and (6, 0) is another point on the graph                                    

                                                              which happens to be the x-intercept

arbitrarily choose x = 12.  Then y = (12 - 6) / (-3) = -2.  Then  (12, -2) is            

                                                                                  another point on the

                                                                                  graph.

Plot (12, -2), (6, 0) and (0, 2).  Draw a line through these three points.

6 0
3 years ago
Equation<br> horizontal asymptote<br> vertical asymptote
ira [324]

Answer:

Hello,

In order to determine which is the horizontal asymptote remember that the horizontal is always x= something and remember that horizontal is straight from left to right.

So Horizontal asymptote = 2

For vertical asymptote it goes from the bottom of the graph, directly up. Think about it like this, you stand upright...or vertically right? So the vertical asymptote is

y= 0

Rate positively and give brainlist

3 0
3 years ago
Other questions:
  • How can you find 4 x 754 using two different methods
    14·1 answer
  • Each of a regular polygon is 140°,find the number of the sides that ghe polygon has​
    13·2 answers
  • Three roommates share their monthly rent payment in a ratio of 7 : 8 : 10. If the monthly rent is $1,200, then what is the amoun
    5·1 answer
  • HELLPPP GRADESSS AHAHHAH [brainly
    13·2 answers
  • Determine the difference of the place value of 7s <br>in 3701 4472​
    5·1 answer
  • I REALLY NEED HELP! I WILL GIVE BRAINLIEST IF YOU ARE CORRECT!!! IM SO LATE!!!
    15·2 answers
  • What is the approximate line of best fit for the scatter plot
    15·1 answer
  • Please no fakes this is the last of my points please try really hard to figure out this problem. if you don't get it go to anoth
    15·1 answer
  • Some1 HELP!! PLZ<br><br> Which table shows a decreasing linear relationship?
    14·2 answers
  • The 12th term of an arithmetic sequence is 29 and the 32nd term is 169. What is the the 25th term?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!