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
Georgia [21]
4 years ago
7

Use elimination to solve each system of equations.

Mathematics
1 answer:
Allushta [10]4 years ago
7 0

Answer:

x=-3

Y=-5

Step-by-step explanation:

2x-y=-1 ×2

3x-2y=1. ×1

4x-2y= -2

3x-2y=1

eliminate y by subtracting

You might be interested in
What is the minimum number of selections from the set { 1, 3, 5, 7, 9, 11, 13, 15 } that we need to guarantee that at least one
anygoal [31]
Perhaps I don't understand the question. You only need to choose one pair that adds to 16, any of {1, 15}, {3, 13}, {5, 11}, {7, 9}.

You can choose up to 4 numbers without getting a pair that adds to 16, so if you choose any 5 numbers, at least one pair of them will add to 16.
3 0
3 years ago
In the same way that other functions can be combined, a series of transformations can be combined into a single function. For ex
Zina [86]
Ok, I think I know what it is saying. I may not be correct but hopefully this gives a idea of a sort.....Im sorry.


The rotation of 90* reflected across the x-axis, so I would think that it is -O. 90(O,-O).

90(O,-O)greater than or equal to ( a units, b units).


8 0
3 years ago
Read 2 more answers
Name the two cases of functions that do not have an all real domain
DiKsa [7]

Answer:

fractions with a variable in the denominator and radicals with an even index.

Step-by-step explanation:

3 0
3 years ago
Age (years) Population Under 15 2600 15 - 64 16000 Over 64 4000 Calculate the child dependency ratio from the chart above. Round
Brums [2.3K]

Answer:

16.25%

=0.163 (correct to 3 decimal places)

Step-by-step explanation:

The child dependency ratio of a population is defined as the number of children (Under 15 years) divided by the working-age population (15–64 years old).

\mathrm{ Child}\;\mathrm{ dependency}\;\mathrm{ ratio}=\dfrac{{\mathrm{ Population}\,\left( \text{Under 15} \right)}}{{\mathrm{ Population}\,\left( {15-64} \right)}}\times 100

From the given table:

Population Under 15 years = 2600

Population of the working class (between 15-64) = 16000

Therefore:

\mathrm{ Child}\;\mathrm{ dependency}\;\mathrm{ ratio}=\dfrac{2600}{16000}\times 100\\\\=16.25\%

=0.163 (correct to 3 decimal places)

3 0
3 years ago
2x-5=3
mariarad [96]

Answer:

I am pretty sure it would be c

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • An employee travels 26 miles round trip from his home to work. If he works 5 days a week, how many miles does he travel in a wee
    13·1 answer
  • Adam is hired at a salary of $50000 per year but will earn an annual increase of 2.5% per year. Brock is hired at the same time
    6·1 answer
  • The position of an object moving vertically along a line is given by the function s(t) = -16t^2 + 128t. Find the average velocit
    12·1 answer
  • 10 Pts <br> Multiplying fractions:<br><br> 5     1 <br> — x — = <br> 6     2
    14·2 answers
  • PLEASE RESOPND QUICK 20 POINTS:
    8·1 answer
  • There are 365 days in a common year how many comman days in 3 common year
    8·2 answers
  • Find the midpoint of the segment with endpoints of (1,-6) and (-3, 4) and
    9·1 answer
  • A fruit vendor wholesalers 50 kg of peaches for $ 110. For other business expenses, add $ 15. He got the kilo of peaches for $ 2
    11·1 answer
  • ANSWER THESE FAST PLZ
    12·1 answer
  • Q1): Which Statistical Method or Tool you will use to find out the following answers: A person who sells ice creams might want t
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!