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
Valentin [98]
3 years ago
5

Rachel has twice as much money as Paul. If I gave Rachel $250, she will then have three times as much as Paul. How much did each

of them have originally?
Mathematics
2 answers:
scZoUnD [109]3 years ago
5 0

Answer:

Paul have $250 and Rachel have $500 originally.

Step-by-step explanation:

Rachel: 2x

Paul: x

If I gave Rachel $250, then:

Rachel: 2x + 250

Paul: 3x

We have he equation:

2x + 250 = 3x

2x - 3x = -250

-x = -250

x = 250

melamori03 [73]3 years ago
3 0

Let's make "x" the amount of Paul.

2x = Rachel.

This means that 2x + 250 = 3x.

Solve:

2x + 250 = 3x

2x - 3x = 250

-x = 250

x = 250

So that means Paul had 250 dollars.

And Rachel had 500 dollars.

You might be interested in
urgent!!!! house has 30 windows. kids playing outside the house 40% of the windows. how many windows are broken?​
svetlana [45]

Answer:

12 windows

Step-by-step explanation:

Number of windows broken = 40% of 30

                                               = \frac{40}{100}*30\\\\= 4 * 3\\\\= 12

3 0
3 years ago
Solve the system of equations by using substitution.<br> x+8y=-2<br> x-3y=20
zysi [14]

Answer:

(14, -2)

Step-by-step explanation:

To solve by using substitution, begin by solving for a variable in the first equation. Let's solve for x:

x+8y=-2\\x=-2-8y

Now we know what <em>x</em> equals. Let's substitute this into the second equation:

x-3y=20\\(-2-8y)-3y=20

We can then simplify:

-2-8y-3y=20 Given equation

-2-11y=20 Combine y terms

-11y=22 Add 2

y=-2 Divide by -11

So, we now know the value of y = -2.

To find the value of X, we can substitute the value of Y into one of the equations. Let's use the first one:

x+8y=-2

x+8(-2)=-2 Substitute for y

x-16=-2 Distribute 8

x=14 Add 16

So, we now know the value of x = 14.

Therefore, we know a solution to the system of equations is (14, -2).

4 0
3 years ago
What is the radius of a circle whose equation is x2+y2+8x−6y+21=0?
melamori03 [73]

Answer:

2 units

Step-by-step explanation:

none

8 0
3 years ago
Find the domain of f(x)=x-9/x squared-81
vagabundo [1.1K]

f(x)=\dfrac{x-9}{x^2-81}\\\\\text{The domain:}\\\\x^2-81\neq0\qquad\text{add 81 to both sides}\\\\x^2\neq81\to x\neq\pm\sqrt{81}\\\\x\neq-9\ \wedge\ x\neq9\\\\Answer:\ \boxed{\text{All real numbers except -9 and 9}}\to\boxed{x\in\mathbb{R}-\{-9,\ 9\}}

7 0
3 years ago
△PQR is dilated by a scale factor of with center , then translated 4units left and 3 units down. Construct the transformed trian
balu736 [363]

Step-by-step explanation:

45.78

4 0
3 years ago
Read 2 more answers
Other questions:
  • Use the substitution method to solve the system of equations. Choose the correct ordered pair. 2x + 4y = 14 x = 3
    5·1 answer
  • Which is an equation of the line through (-8, -4) and (4, 5)?
    10·2 answers
  • I NEED THIS NOWW!!!!!!
    13·2 answers
  • A few years ago, the Colorado Rockies played 160 games and won 64. for every two games they won, how many games did they lose?
    7·2 answers
  • How do you write four million, six hundred five thousand in standard form
    5·2 answers
  • Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the
    5·1 answer
  • Name the coordinates of (-5-7) after they reflect over to the x-axis? (GMM)
    13·2 answers
  • -6(x - 7)<br> Help Please
    7·2 answers
  • Elisa withdrew $20 at a time from her bank account and withdrew a total of $160. Frances withdrew $49 at a time from his bank ac
    6·1 answer
  • There are 5,280 feet in a mile. What part of a mile, in decimal form, will you drive until you reach the exit?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!