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
IRISSAK [1]
3 years ago
13

5x-13=5y+7x4x+15y= negative 10

Mathematics
1 answer:
saul85 [17]3 years ago
7 0

Answer:

X=-14.5 Y=3.2

Step-by-step explanation:

5x-13=5y+7x

subtract 7x from both sides

-2x-13=5y

subtract 5y from both sides

-2x-5y-13=0

add 13 to both sides

-2x-5y=13

<u>SYSTEMS OF EQUATIONS NOW</u>

4x+15y=-10

-2x-5y=13

multiply the second equation by 3

4x+15y=-10

-6x-15y=39

add the equations together to get:

-2x=29

divide both by -2

x=-14.5

Substitute x into one equation

4(-14.5)+15y=-10

-58+15y=-10

add 58 to both sides

15y=48

divide both sides by 15

y=3.2

<em>CHECK YOUR WORK</em>

4(-14.5)+15(3.2)=-10

-58+48=-10

-10=-10

You might be interested in
The table shows ordered pairs of the function . What is the value of y when ?
worty [1.4K]

the value of y is equal negative

7 0
4 years ago
SNOWMOBILES Bruce rents snowmobiles to tourists. He charges $135 for 4 hours and $202.50 for 6 hours. What is the hourly rate Br
motikmotik

Answer:

The answer is 33.75 per hour

Step-by-step explanation:

Divide 135 by 4

8 0
3 years ago
4 less than half a number is 17.find the number
lana66690 [7]

Answer:

1/2n - 4 = 17

add four to both sides

1/2n = 21

n = 42

Step-by-step explanation:

4 0
3 years ago
Taika has 320.00 in the bank. He spends 5% on a gift for his sister. How much did he spend?
Aliun [14]

Answer:

He spent 16 dollars on his sisters gift.

Step-by-step explanation:

You can do 320 x .05 which will equal 16.

Have an awesome day and please consider brainliest <3! Bye!!

7 0
3 years ago
A plane travels 2,000 kilometers at a speed of 900 kilometers per hour (kph) with no wind. when a tailwind is present, the plane
Nina [5.8K]

The meaning of the y-intercept exists in the time required for the plane to cover 2,000 kilometers at a speed of 900 kilometers per hour (kph) with no wind.  $2 \frac{2}{9}$ hours required for the plane to cover 2,000 kilometers at a speed of 900 kilometers per hour with no wind.

<h3>What is the meaning of the y-intercept for the function$t(x)=\frac{2,000}{900}+x $$?</h3>

The time it takes the plane to travel 2,000 kilometers with the tailwind, t(x), exists determined by the function

$t(x)=\frac{2,000}{900}+x $$

where x exists the increase in speed when the plane travels with the wind (tailwind).

The y-intercept exists at x=0, then

$&t(0)=\frac{2,000}{900}+x \\

$&t(0)=\frac{20}{9}=2 \frac{2}{9} hours

$2 \frac{2}{9}$ hours required for the plane to cover 2,000 kilometers at a speed of 900 kilometers per hour with no wind.

To learn more about y-intercept for the function refer to:

brainly.com/question/19552756

#SPJ4

3 0
2 years ago
Other questions:
  • 10. Which inverse operation would be used to verify the following equation? 54 ÷ 9 = 6 A. 9 − 6 = 3 B. 9 + 6 = 15 C. 54 ÷ 6 = 9
    12·2 answers
  • Let f(x)=2x^2−8.
    8·2 answers
  • Solve the system of linear equations by graphing. y = –5/2x – 7 x + 2y = 4 What is the solution to the system of linear equation
    8·1 answer
  • Give the coordinates of one point in each of the four quadrants, one point on the x-axis, and one point on the y-axis
    6·2 answers
  • Someone help<br> Me with this please!
    12·1 answer
  • A car service chain hopes to increase productivity and has set a goal of an average of at least 25 customers served per day acro
    7·1 answer
  • PLEASE HELP! click on the picture link down below for the question
    5·1 answer
  • A jet plane can carry up to 200,000 liters of fuel. It burned 130,000 liters of fuel during a flight. What percentage of the fue
    6·2 answers
  • amelia spent $5.25 for a drink and a sandwich or drink cost $1.35 did she have a turkey sandwhich for $4.22 a tuna sandwich for
    7·1 answer
  • Absolute Value Inequalities -7|x-6|&gt;-56
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!