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
marta [7]
3 years ago
13

Which could be the resulting equation when elimination is used to solve the given system of equations ?

Mathematics
1 answer:
WINSTONCH [101]3 years ago
5 0

Answer:

10·b = 60

Step-by-step explanation:

The given system of equation is presented as follows;

5·a + 5·b = 25...(1)

-5·a + 5·b = 35...(2)

Given that the coefficient of a in equation (1) is equal in magnitude but opposite in sign to the coefficient of 'a' in equation (2), to eliminate the variable 'a' when using the elimination method, we add both equations as follows;

5·a + 5·b + (-5·a + 5·b) = 25 + 35 = 60

5·a - 5·a + 5·b + 5·b = 60

5·a - 5·a = 0

5·b + 5·b = 10·b

∴ 5·a - 5·a + 5·b + 5·b = 60 = 0 + 10·b = 10·b

∴ 10·b = 60

You might be interested in
If you have 24 months to save $4,220 how much would you have to save each month
gulaghasi [49]

Answer:

$175.83

Step-by-step explanation:

All you have to do is 4220 divided by 24 = $175.83

4 0
3 years ago
Jeff had 1 A,4Bs and 2 C's what was he's gpa
Mandarinka [93]

Answer:

Hes Gpa Is that man is good. helps :0

Step-by-step explanation:

8 0
2 years ago
It is recommended that you work this out on graph paper to help answer the questions. Sean plots the locations of 4 places on a
zepelin [54]
A) 2 units
B) yes

For A) |5-3|=|2|=2 is the distance from his house to school.

For B)
The distance from his house to school is 2 units; the distance from school to the grocery store is |3--9|=|12|=12.  The total distance is 2+12 = 14.

The distance from his house to school is 2 units; the distance from school to the community center is |-4-6|=|-10|=10.  The total distance is 2+10 = 12.

The distance from the house to the school to the grocery store is greater.
6 0
3 years ago
24kids will attend next week’s field trip. If 5 kids can fit each car. How many cars will be needed?
Kipish [7]

Answer:

The answer is 5.......

Step-by-step explanation:

5x5=25

3 0
3 years ago
Read 2 more answers
NEED HELP WITH A MATH QUESTION
gogolik [260]

Answer:

(-3,-4)

Step-by-step explanation:

You draw it...

         So since we are reflecting across the x-axis, we want the x-coordinate to stay the same.  We just need to take the opposite of y.

Ans. (-3,-4)

4 0
3 years ago
Read 2 more answers
Other questions:
  • Find the slope: y = 3 - 6x
    11·1 answer
  • Solve Diego's equation: x + 35 =180 x =
    12·2 answers
  • What is exact value of cos7pi/6
    13·1 answer
  • How do geometric shapes relate to exponents?
    15·1 answer
  • A store had homemade sweaters for $20 off the original price. Aunt Ethel jumped at the bargain and bought a sweater for all 5 me
    12·1 answer
  • If each cup cost 0.50 cents and there is $127.50 collected how much cups are there
    8·1 answer
  • =<br> Solve for x.<br> 18+x=y<br> x = 0<br> ?
    15·2 answers
  • Which of the following expressions have a value of 180 when b = 4?
    14·1 answer
  • Which results only in a horizontal compression of Y =
    12·1 answer
  • Ye Li drew a quadrilateral that is both a rectangle and a rhombus. Name the quadrilateral and describe it using the properties o
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!