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
nadya68 [22]
3 years ago
7

Please help me!! find the solution of this system of equations -x + 5y=-18 5x - 9y= 10

Mathematics
1 answer:
pychu [463]3 years ago
8 0
Multiply the first equation by 5 to use the elimination method.

-5x+25y=-90
5x-9y=10

16y=-80
y=-5

Plug this y value into one of the original equations.

-x+5(-5)=-18
-x-25=-18
-x=7
x=-7

Final answer: (-7,-5)
You might be interested in
AT&T has a family plan of four lines for $125 and additional lines are $15 each per month. If Jason wants to spend at most $
denis-greek [22]

Given:

Cost of four lines = $125

Cost of each additional line = $15

Jason wants to spend at most $200 per month on cell phone expenses.

To find:

The inequality for the given situation.

Solution:

Let x be the number of additional line.

Cost of one additional line = $15

Cost of x additional line = \$15x

Total cost = Fixed cost + Addition cost

                = 125+15x

It is given that Jason wants to spend at most $200 per month on cell phone expenses. It means the total cost must be less than or equal to 200.

125+15x\leq 200

Therefore, the correct option is C.

8 0
3 years ago
PLS HELP <br> Find the slope of each line
Bas_tet [7]

Answer:

s = -1/6

Step-by-step explanation:

as x increases 6 units, y decreased 1 unit

Slope is Δy/Δx = -1/6

5 0
3 years ago
IF 15 CHOCOLATE COST 10 RUPEES THEN HOW MUCH DOES 1 CHOCOLATE COSTS.
Blababa [14]

Answer:

2/3 Rupees

Step-by-step explanation:

Lets say Chocolate is C and a rupee is R.

Then, 15C = 10R. We can simplify to 3C = 2R. Now we divide both sides by Three to get C = 2/3R, which means a chocolate is 2/3 of a rupee!

8 0
2 years ago
Hey everyone 2 what's 9+9 my preschool teacher wanna know
stepladder [879]
18 woooooooooooooooo
4 0
3 years ago
Read 2 more answers
The average temp at the south pole is -54°f. The average temp on the equator is 92°f. How much warmer is the average temp on the
podryga [215]
The answer to this question would just be the distance between -54 and 92.  The easiest way to solve this would be with absolute value.  If you have questions about what that means let me know.
|-54|+92=t
54+92=t
146=t
The average temp in the equator is 146 degrees Fahrenheit warmer than the average temperature in the south pole
6 0
4 years ago
Read 2 more answers
Other questions:
  • -2/3 x -9/8 x -4/5 x -1
    14·1 answer
  • an airplane can travel 550 miles per hour. write and solve an equation to find the time it will take to fly from london to montr
    14·2 answers
  • Write an explicit formula for an arithmetic sequence whose common difference is -3, and first term is -9.
    9·2 answers
  • Helppppp mee please ❗
    14·1 answer
  • Find the value of x in the isosceles trapezoid below?
    10·1 answer
  • 29. Each day, two out of the three teams in a class are randomly
    13·1 answer
  • Which expression best estimates Negative 18 and one-fourth divided by 2 and two-thirds?
    12·1 answer
  • Find the Surface Area of the figures below:
    13·1 answer
  • Find the value of each variable
    8·1 answer
  • Six movie tickets cost $96 what is the cost per ticket
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!