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
Elena-2011 [213]
2 years ago
14

Solve by canceling -5x+8y=-4 6x-8y=-12

Mathematics
1 answer:
Vinil7 [7]2 years ago
7 0

Step-by-step explanation:

-5x+8y=-4

6x-8y=-12   8y and 8x cancel out

         x=-16

To solve for y, substitute x=-16 back into the first equation

-5(-16)+8y=-4

    80+8y=-4

          8y=-84

            y=-10.5

You might be interested in
Anita invested $6000, some at 5% and the rest at 6%. If the yearly income is $337.50, what is the amount invested at each rate?'
allochka39001 [22]
Is this rsm? lol okay.

x is the amount of money invested at 5%
y is the amount of money invested at 6%
the total amount of money invested is $6000, or x+y
when it says the yearly income is $337.50, it means that the 5% of x plus the 6% of y equals $337.50.

now write the two equations:

x+y =6000

0.05x + 0.06y = 337.50

now, find y for the first equations, which is y= 6000 - x. use this equation to substitute for the second equation.

0.05x + 0.06(6000 -x) = 337.50

blah, blah, blah, solve for x... you should get x = 2250, and y = 3750.

I hate money problems like this, hope it helps.


3 0
3 years ago
Read 2 more answers
Which inequality represents all values of x for which the product below is<br> defined?<br><br> ixt1
sesenic [268]

Answer:

Step-by-step explanation:

i got band and theres nothing below

6 0
3 years ago
There are 283 students and Wiley school and 59 of them are in the sixth grade. What is the approximate percent of six graders at
Paladinen [302]
20% are in 6th grade
6 0
2 years ago
Read 2 more answers
The quotient obtained when an integer is divided by its additive inverse is ________________.
Ahat [919]

Answer:

-1

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
An inequality that has the following graphed solution
Alex787 [66]

Answer:

x > 5

Step-by-step explanation:

Tell me if I'm wrong.

5 0
2 years ago
Other questions:
  • If a and b are the zeroes of the polynomial, x^2-11x +30, then the value of a3 + b3 =
    13·1 answer
  • Slope intercept, just need one problem solved so I can get an idea thanks
    5·2 answers
  • Which set of numbers all include the number -3
    14·1 answer
  • 25 points please answer all 4 problems
    5·1 answer
  • Nadia thinks of a number.
    10·1 answer
  • Which equation has the correct sign on the product?
    7·2 answers
  • Write the sentence as an inequality.<br><br> Three times a number w is less than 18.
    11·1 answer
  • Which equation should you solve to find x?<br> ​
    13·1 answer
  • The Royal Fruit Company produces two types of fruit drinks. The first type is 80 % pure fruit juice, and the second type is 100%
    5·1 answer
  • Algebra 2 help needed image below urgent !!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!