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
3241004551 [841]
3 years ago
12

Solve 2y = 6x + 10 y = 2x + 4

Mathematics
1 answer:
mihalych1998 [28]3 years ago
7 0

Answer:

x =-1

Step-by-step explanation:

\left \{ {{2y = 6x +10} \atop {y = 2x +4}} \right.

replace y by 2x +4 in the first equation

2(2x + 4) = 6x + 10

4x + 8 = 6x + 10

-2x +8 = 10

-2x = 2

x = -1

You might be interested in
Someone please help! Thxx
tangare [24]

Answer:

E, needs more info to be determined

Step-by-step explanation:

We know that Kai takes 30 minutes round-trip to get to his school.

One way is uphill and the other is downhill.

He travels twice as fast downhill than uphill.

This means that uphill accounts for 20 minutes of the round-trip and downhill accounts for 10 minutes of his trip.

However, even with this information, we do not know how far his school is.

In order to figure out how far away his school is, we would need more information about the speed at which Kai is traveling.

Simply knowing that he travels twice as fast downhill is not enough.

This question could only be solved by knowing how many miles Kai travels uphill or downhill in a given time.

3 0
3 years ago
A certain company sends 35% of its overnight mail parcels via express delivery service 1 and the rest by express delivery servic
sineoko [7]

Answer:

55.32% probability that a late package was delivered by express delivery service 2

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

P(B|A) = \frac{P(B)*P(A|B)}{P(A)}

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

In this question:

Event A: Late delivery.

Event B: Service 2 was used.

A certain company sends 35% of its overnight mail parcels via express delivery service 1 and the rest by express delivery service 2.

100 - 35 = 65%.

So P(B) = 0.65

Service 2 has a record of 2.0% of packages being delivered late.

This means that P(A|B) = 0.02

Probability of a late delivery.

35% from service 1. Of those, 3% are late.

65% from service 2. Of those, 2% are late.

So

P(A) = 0.35*0.03 + 0.65*0.02 = 0.0235

What is the probability that a late package was delivered by express delivery service 2

P(B|A) = \frac{0.65*0.02}{0.0235} = 0.5532

55.32% probability that a late package was delivered by express delivery service 2

5 0
3 years ago
What is the x and y intercepts for 10y=5x-20
Readme [11.4K]
They represent variables 
5 0
3 years ago
Read 2 more answers
The population of a town grows at a rate proportional to the population present at time t. the initial population of 500 increas
vaieri [72.5K]
This is a case of exponential growth.  The appropriate equation, with the given data inserted, is     P(t) = 500 ( 1+0.15)^50

or                                   = 500 (1.15)^50

Evaluate this on your calculator.
5 0
4 years ago
What is the range of the following relation?
denis23 [38]

The range of a relation is the set of the outputs of the relations.

The outputs are

\{1, 2, 3, 4, 5\}

And this is the range.

3 0
3 years ago
Other questions:
  • Fifty decreased by 8 times a number
    15·2 answers
  • Describe each polynomial expression by type and components based on the example shown. 3x^2 + 2x 2x^2 − 5x + 3 6x
    8·2 answers
  • Please give the answer in minutes.
    5·1 answer
  • Is the quotient of 3/5 ÷ 6/7 greater than or less than 3/5? Explain
    6·2 answers
  • Write a expression in simplest form that represents the income from w women and m men getting a haircut and a shampoo. Women hai
    6·1 answer
  • The 4th and 8th term of a G.P. are 24 and 8/27 respectively. find the 1st term and common ratio
    14·1 answer
  • Gregor weighs 100 pounds. He climbs a 8 foot ladder in 10 seconds. What is Gregor's power output?
    15·2 answers
  • If you divide the age of Grampa Gump by 16, you get
    9·2 answers
  • Help pls im dont know it
    5·1 answer
  • Answer the question
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!