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
bonufazy [111]
3 years ago
14

2m+n=7 4m+3n=-10 Solve using substitution method

Mathematics
1 answer:
jeka57 [31]3 years ago
5 0

Answer:

m=31/2, n=-24. (31/2, -24).

Step-by-step explanation:

2m+n=7

4m+3n=-10

-------------------

n=7-2m

4m+3(7-2m)=-10

4m+21-6m=-10

-2m=-10-21

-2m=-31

2m=31

m=31/2

2(31/2)+n=7

31+n=7

n=7-31

n=-24

You might be interested in
Which situation requires the addition counting principle to determine the number of possible outcomes?
IgorLugansk [536]

Answer:

Renting a vehicle when there are 5 cars, 3 vans, and 10 sports utility vehicles available

Step-by-step explanation:

Creating a stuffed animal when there are 6 animals, 3 fur colors, and 12 clothing themes available

This condition requires multiplication or factorials to determine outcomes

Renting a vehicle when there are 5 cars, 3 vans, and 10 sports utility vehicles available

This situation requires the addition counting principle to determine the number of possible outcomes as there is only one car to be picked so all the numbers 10+5+3 = 18 will be added to get the possible outcomes ..

8 0
3 years ago
Round 17.5 to the nearest 1
skelet666 [1.2K]

Answer:

18

Step-by-step explanation:

.5 is 5 4 and below round down 5 and up round up

8 0
3 years ago
A colony of bacteria has 10,000 bacteria and is growing exponentially. The inequality 10,000(4x) ≥ 320,000 represents the hours,
dexar [7]

Answer:

A [2.5, ∞)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Can someone explain to me taxes?
jeka94

taxes
According to the oxford dictionary, the word taxes defines as a compulsory contribution to state revenue, levied by the government on workers' income and business profits, or added to the cost of some goods, services, and transactions.

explanation
Money is taken from your yearly earnings to pay for services such as the Police, Emergancy Services, Military, Schools, Postal Service ect. It is also used to pay workers who work in a federal agency such as Postal Workers and the FBI. Citizens of the United States are taxed on items that are non-edible, such as a TV, and phones in stores. Tax percentages differ in every state.

Taxes are destributed to states so the states could build roads, schools, police stations and a lot more stuff.

The country can run Social Programs such as Social Security from taxes.
5 0
3 years ago
5÷20<br> I need help<br> I Just need the answer
bija089 [108]

Answer:

0.25

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Al, Pablo, and Marsha shared the driving on a 1,500-mile trip. Which of the three drove the greatest distance on the trip?(1) Al
    13·1 answer
  • The Truit family rented the cabin shown in the shape in a triangular prism. The cabin is 30 feet deep. What is its volume?
    10·1 answer
  • Please answer what the missing number is
    5·2 answers
  • -4.5x (-2) I need this solved please:)
    13·1 answer
  • What is the 6th term of the sequence? an=18−2n
    9·2 answers
  • How would I do this??? Help!!!!
    8·1 answer
  • What is the value of x^3\cdot y^4x
    9·2 answers
  • Suppose that a function does have an inverse. The graph of its inverse will be the reflection of the graph of the function over
    7·2 answers
  • HELP U GUYS. For a fundraiser, Alex sold large boxes of oranges for $9 each and small boxes of oranges for $5 each. if he sold 1
    13·1 answer
  • Type the correct answer in each box. Use numerals instead of words.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!