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
lisabon 2012 [21]
2 years ago
14

Which method would be more efiicient to solve the system y=1/2x and 2x+3y=28

Mathematics
1 answer:
Licemer1 [7]2 years ago
6 0
Probably the subsitution method


y=1/2x
subsitute that fr y

2x+3(1/2x)=28
2x+3/2x=28
times 2 both sides
4x+3x=56
7x=56
divide by 7 both sides
x=8
sub back

y=1/2x
y=1/2(8)
y=4

(x,y)
(8,4)
You might be interested in
a journey to work takes a women three quarters of an hour. if she catches the bus at 7:55, when does she arrive?
geniusboy [140]
She would arrive at 8:40
4 0
2 years ago
While I was trying to make something my microwave exploded
diamong [38]

Answer:

OMG!!!! WHAT WERE YOU TRYING TO MAKE

6 0
2 years ago
Read 2 more answers
It has been conjecture by the U.S. Census Bureau that "approximately 60% of foreign-born people who live in the U.S. are not nat
Rudiy27

Answer:

b. 42 people

Step-by-step explanation:

For each foreigner living in the U.S., there are only two possible outcomes. Either they are naturalized citizens, or they are not. The probability of a foreigner living in the U.S. not being a naturalized citizen is independent from other foreigners living in the U.S. So we use the binomial probability distribution to solve this problem.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

E(X) = np

"approximately 60% of foreign-born people who live in the U.S. are not naturalized citizens"

This means that p = 0.6

70 foreign-born people who live in the U.S

This means that n = 70

How many people would you expect to get that are not naturalized citizens?

E(X) = np = 70*0.6 = 42

So the correct answer is:

b. 42 people

8 0
2 years ago
Find the slope of the line that passes through (4, 1) and (6,4).
Alex

Answer:

Step-by-step explanation:

7 0
3 years ago
20% of the students in the class play an instrument. if there are 35 students in class, how many play an instrument?
kondor19780726 [428]

Answer:

7 students play an instrument.

Calculation:

35=100%

20%=[20×35]÷100

=7

6 0
2 years ago
Other questions:
  • Can you help me please I need help please
    14·1 answer
  • Can someone help please!
    7·1 answer
  • 2x+4 and x+2 equivalent or not
    11·1 answer
  • Mia is taking art and calculus courses on Mondays. She is late for the art class with probability 0.5 and late for the calculus
    15·1 answer
  • How do you evaluate a function?
    14·1 answer
  • Roger wants to make a deposit into his savings account. He is depositing 2 checks, one for $125.62 and the other for
    5·2 answers
  • Samantha is collecting quarters for a school fundraiser. She wants to wrap what she has already collected into coin rolls. Each
    15·1 answer
  • Find the next term of the sequence.<br> 24, 17, 10, 3, ...<br><br> -7 <br> 0<br> -4<br> -5
    9·1 answer
  • A nursery plants 6 rows containing 24 pine trees each. It plants 3 rows containing 32 pine trees each. How many pine trees does
    7·1 answer
  • Sodas cost $1.75 each. Write a direct
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!