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
nika2105 [10]
3 years ago
14

Twice a number minus a second number is –1. Twice the second number added to three times the first number is 9. Find the two num

bers.
Mathematics
1 answer:
forsale [732]3 years ago
6 0

Answer:

n= 1

x= 2

Step-by-step explanation:

the equations are 2n - x = -1

                              2x + 3n = 9

You might be interested in
The first three terms of a geometric sequence are as follows. −4 , 20 , −100 find the next two terms of this sequence. give exac
lbvjy [14]
You multiply by -5 to find any next term. so next two are 500 then -2500
7 0
3 years ago
Michael is 3 times as old as Brandon. 18 years ago, Michael was 9 times as old as Brandon.
Zigmanuir [339]
I hope this helps you


Brandon x


Michael 3x


18 years ago


Brandon x-18


Michael 3x-18


9 (x-18)=3x-18


9x-9.18=3x-18

9x-3x=9.18-18

6x=8.18

x=8.3

x= 24
5 0
2 years ago
a veterinary researcher takes an srs of 60 horses presenting with colic whose average age is 12 years. the average age of all ho
Ghella [55]

Answer:

The value 10 years is the population mean

Step-by-step explanation:

A sample consists of some observations drawn from the population, so a part or a subset of the population which in this case is the number of horses with colic.

A sample mean is the mean of the statistical samples while a population mean is the mean of the total population.

Thus, in this case, the sample mean is the mean age of the horses with colic while the population mean age is the mean age of all the horses found at the clinic.

Therefore, the mean age of 10 of the horses seen at the clinic would be the population mean.

4 0
3 years ago
A water balloon slingshot launches its projectiles essentially from ground level at a speed of 25.5 m/s . (You can ignore air re
lozanna [386]
A) The longest horizontal distance is reached at 45 degrees angle. This is true for any projectile launch.

B) First, calculate fligth time (using the vertical motion) and then calculate the horizontal movement.

Flight time = 2* ascendent time

ascendent time => final vertical velocity, Vy, = 0

sin(45) = Voy / Vo => Voy = Vosin(45) = 25.5 m/s * (√2) / 2 = 18.03 m/s

Vy = Voy - gt = 0  => Voy = gt = t = Voy / g

Use g = 10 m/s^ (it is an aproximation, because the actual value is about 9.81 m/s^2 depending on the latitud)

t = 18.03 m/s / 10 m/s^2 = 1.83 s

This is the ascendant time going upward.

The flight time is 2*1.83 = 3.66 s

Horizontal motion

Horizontal velocity = Vx = constant = Vox = Vo*cos(45) = 18.03 m/s

Vx = x / t => x = Vx*t

Horizontal distance = xmax = 18.03m/s*3.66 s = 65.99 m

c) The time the ballon will be in the air was calculated in the part B, it is 18.03 s
5 0
3 years ago
‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️PLEASE PLEASE HELP!!!!!! I CANT FAIL AGAIN!!!!! ONLY ANSWER IF YOU KNOW YOU HAVE THE RIGHT ANSWER!!!!!!!
Marat540 [252]
You have the right answer. n + p = m because inside angle + inside angle = outside angle.
5 0
3 years ago
Other questions:
  • Find the missing side length
    5·1 answer
  • The equation below shows the relationship between the temperature in degrees Celsius, C, and degrees Fahrenheit, F:
    5·2 answers
  • Calculate the area of the rhombus: d= 11.5 a=8.8
    15·1 answer
  • When creating a similar figure, the original angle measures will be enlarged by a scale factor to create the new shape
    7·1 answer
  • A research paper requires you to organize your paper in a particular way and follow a specific form.
    5·2 answers
  • How many seconds will tick away February 20th
    7·1 answer
  • The width of a rectangle is 2x + 4 and the length of the
    5·1 answer
  • Andrea withdrew $40 each week from her account she made no deposits that account is now at zero dollars write a numeric equation
    11·1 answer
  • Please help<br><br> Be sure to show your work and solve for f:<br> 8 = f (13-2)
    12·2 answers
  • Help me please like plase
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!