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
Naddika [18.5K]
3 years ago
9

Solve the system of linear equations using any method you choose:

Mathematics
2 answers:
Alex Ar [27]3 years ago
6 0
The answer would be x= 5 and y= 0
dybincka [34]3 years ago
3 0

Answer:

2x+8y=10 ie. eqn1

-x+y=-5 ie.eqn2

now, multiply eqn 2 by 2 and solve eqn1 and eqn2 then we get,

2x+8y=10

-2x+2y=-10

___________

10y=0

therefore, y= 0 and put the value of y in eqn1

2x+8y=10

or, 2x+8×0=10

or, 2x=10

x=10÷2=5ans.

hence x=5 and y=0

You might be interested in
At Emily's summer camp, there are
Stells [14]

Answer:

15

Step-by-step explanation:

3 counselors for every 20 girls

6 0
3 years ago
Read 2 more answers
Factor completely 5ax2 − 20x3 + 2a − 8x.
Viefleur [7K]

Answer:

C

Step-by-step explanation:

5ax²-20x³+2a-8x

=5 x²(a-4x)+2(a-4x)

=(a-4x)(5x²+2)

3 0
3 years ago
Read 2 more answers
Part b: The length of the hypotenuse is?
Ipatiy [6.2K]

Answer:

B

Step-by-step explanation:

cus thats the formula

7 0
3 years ago
Complete the table with the number of sit-ups you have to do sunday so that the mean number of sit-ups per day is 100
marissa [1.9K]

The mean is the average of the numbers.

It is easy to calculate: add up all the numbers, then divide by how many numbers there are.

Let the number of sit-ups you have to do Sunday be x. Then the sum of all sit-ups is

100+65+120+150+90+0+x=525+x.

The number of days is 7.

Thus, the mean is

\text{mean}=\dfrac{525+x}{7}.

You know that the mean number of sit-ups per day is 100, equate these two means and solve the equation:

\dfrac{525+x}{7}=100,\\ \\525+x=700,\\ \\x=700-525,\\ \\x=175.

Answer: 175 sit-ups

5 0
3 years ago
Convert 6.7 minutes to seconds.
Diano4ka-milaya [45]

Answer:

402 seconds

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Other questions:
  • Can someone help me with this? I will mark you as brainliest
    6·1 answer
  • Suppose that y varies directly with x and y=10 when x=20. What is y when x=15
    11·1 answer
  • A random walker is observed to take a total of N steps, n of which are to the right (and the rest n^' are to the left). Suppose
    9·1 answer
  • Define a variable and write an equation for each real-world problem. 1] Matt spent $ 6.50 on his lunch. This is $2.25 more than
    9·1 answer
  • What is the equation of the graph below?
    7·1 answer
  • A bag contains 5 RED beads, 3 BLUE beads, and 4 GREEN beads. If a single bead is picked at random, what is the probability
    13·1 answer
  • A collection of 30 gems, all of which are identical in appearance, are supposedto be genuine diamonds, but actually contain 8 wo
    6·1 answer
  • Look at the question below.
    7·2 answers
  • Someone help! I’m not good at these problems!
    15·2 answers
  • Which expression is equal to 4/8
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!