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
Rama09 [41]
3 years ago
9

How many solutions does this system of Equations have x-2y=2 y=-2x+5​

Mathematics
1 answer:
gayaneshka [121]3 years ago
3 0

Answer:

One solution: x=2.4, y=0.2

Step-by-step explanation:

x-2y=2

y=-2x+5​

x-2(-2x+5)=2

x+4x-10=2

5x=2+10=12

x=12:5=2.4

y=-2x+5=-2*2.4+5=-4.8+5=0.2

You might be interested in
James drove 986 miles from Philadelphia to Orlando in 14.5 hours. He continued to drive at the same average speed and drove anot
VMariaS [17]

Answer:

James Spent 25 hours driving from  Philadelphia to New Orleans.

Step-by-step explanation:

Given:

Distance from Philadelphia to Orlando = 986 miles

Time required to travel Philadelphia to Orlando = 14.5 hrs

Distance from Orlando to New Orleans = 714 mile.

We need to find the total amount of time James spent driving from Philadelphia to New Orleans.

Solution:

First we will find the average speed from Philadelphia to Orlando.

We know that;

Speed is equal to distance divided by time.

framing in equation form we get;

average speed from Philadelphia to Orlando = \frac{986}{14.5}=68\ mi/hrs

Now given that he traveled with same speed from Orlando to New Orleans.

So we will find the time required from Orlando to New Orleans.

We know that;

Time is equal to Distance divided by speed.

framing in equation form we get;

time required from Orlando to New Orleans = \frac{714}{68}= 10.5 \ hrs

Now we will find the total time James spent on driving from Philadelphia to New Orleans.

the total time James spent on driving from Philadelphia to New Orleans is equal to sum of Time required to travel Philadelphia to Orlando and time required from Orlando to New Orleans.

framing in equation form we get;

the total time James spent on driving from Philadelphia to New Orleans = 14.5 + 10.5 = 25 hours.

Hence James Spent 25 hours driving from  Philadelphia to New Orleans.

6 0
3 years ago
Please help asap.............................
Westkost [7]

Answer:

A. $8.80

Step-by-step explanation:

$9.28 x 2.5 = $23.20

$12.80 x 2.5 = $32.00

$32.00 - $23.30 = $8.80


B. 8 lbs. caramel and 2 lbs. chocolate

Step-by-step explanation:

$9.28 x 8 = $74.24

$12.80 x 2 = $25.60

$74.24 + $25.60 = $99.84

6 0
2 years ago
Read 2 more answers
The sum of three numbers is 67. The third number is 2 times the first. The first number is 5 more than the second. What are the
Vaselesa [24]

Answer:

1. 18 2. 13 3. 36

Step-by-step explanation:

3 0
3 years ago
Please help me I need it right now
Nana76 [90]

Answer:

X+y=180, Y=Z, X+Z=180

Step-by-step explanation:

Hope this helps. i remember doing this.

6 0
3 years ago
Find the perimeter of the quadrilateral.
levacccp [35]

<em><u>Question:</u></em>

Find the perimeter of the quadrilateral. if x = 2 the perimeter is ___ inched.

The complete figure of this question is attached below

<em><u>Answer:</u></em>

<h3>The perimeter of the quadrilateral is 129 inches</h3>

<em><u>Solution:</u></em>

The complete figure of this question is attached below

Given that, a quadrilateral with,

Side lengths are:

4x^2 + 8x\ inches \\\\3x^2-5x+20\ inches \\\\7x + 30\ inches \\\\31\ inches

The values of the side lengths when x = 2 are

(4x^2+8x)=(4\times 2^2+8\times 2)=(4\times 4+16)=16+16=32\ inch\\\\(3x^2-5x+20)=(3\times 2^2-5\times 2+20)=(3\times 4-10+20)=12+10=22\ inch\\\\(7x+30)=(7\times 2+30)=14+30=44\ inch

Perimeter of a quadrilateral = Sum of its sides

Perimeter of given quadrilateral = 32 + 22 + 44 + 31 = 129 inches

Thus perimeter of the quadrilateral is 129 inches

5 0
3 years ago
Other questions:
  • James ran 3 miles. How many yard
    13·2 answers
  • 1. Write a number whose square is between 200 and 300.
    9·1 answer
  • Write the point -slope form of the equation of each line given the slope and y-intercept. Slope=(2/3), y-intercept =0
    7·1 answer
  • How to solve this problem​
    9·2 answers
  • Using the exponential regression mode, which prediction of the wavelength of the key that is 8 above the A above middle C
    11·1 answer
  • Can somebody answer this math question I’m lost
    13·1 answer
  • A sofa is 900 more than the price of c which system of equation can be used to find price of each piece
    14·1 answer
  • I need help with math algebra homework
    6·1 answer
  • The point C(-3, -1) is rotated 180 degrees clockwise about the origin. What are the coordinates of the resulting point, C
    11·1 answer
  • Marcel and Floyd are playing games at an arcade. Marcel has $8.25 and is only playing $0.25 games. Floyd has $9.75 and is only p
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!