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
My name is Ann [436]
2 years ago
9

Solve the system of equations: 5x + 3y = 23 3y = 15x - 21

Mathematics
1 answer:
Rama09 [41]2 years ago
4 0

Answer:

x=11/5 and y=4

Explanation:

You might be interested in
Helppppppppppppppppp
Gwar [14]

Answer:

30

Step-by-step explanation:

40-10=30 so N has to be 30

Your answers are N=30 and N-25=5

Hope this helps :)

1 thanks for me=1 thanks for you

5 stars=3 thanks for you

Brainliest for me=5 thanks for you

5 0
3 years ago
Complete each statement then state the property or properties illustrated by each statement on
VMariaS [17]

Answer:

(8n)(-77)=-77(n*8)

We move all terms to the left:

(8n)(-77)-(-77(n*8))=0

We add all the numbers together, and all the variables

8n(-77)-(-77(+n*8))=0

We multiply parentheses

-616n-(-77(+n*8))=0

We calculate terms in parentheses: -(-77(+n*8)), so:

-77(+n*8)

We multiply parentheses

-616n

Back to the equation:

-(-616n)

We get rid of parentheses

-616n+616n=0

We add all the numbers together, and all the variables

=0

n=0/1

n=0

the property is Associative Property

Step-by-step explanation:

this one was kinda hard pls let me know it its right or not

7 0
2 years ago
Helppp it’s due in a couple minutes!!!
trasher [3.6K]
Not my work but found answer key to answer u need.

8 0
2 years ago
Read 2 more answers
three boxes under my stairs contain apples or pears are both each box contains the same number of pieces of fruit the first box
Brrunno [24]

There are 16 fruits in each of the boxes found under the stairs.

<h3>What is an equation?</h3>

An equation is an expression used to show the relationship between two or more numbers and variables.

Let x represent the number of pears, hence:

Number of fruit in first box = 12 + (1/9)x

Number of fruit in second box = number of fruit in third box = (8/9)x ÷ 2 = (4/9)x

Therefore:

12 + (1/9)x = (4/9)x

x = 36

First box = second box = third box = (4/9) * 36 = 16

There are 16 fruits in each of the boxes found under the stairs.

Find out more on equation at: brainly.com/question/2972832

4 0
1 year ago
Phonics is an instructional method in which children are taught to connect sounds with letters or groups of letters. A sample of
natali 33 [55]

Answer:

98% confidence interval: (29.25,38.87)

Step-by-step explanation:

We are given the following in the question:

Sample mean, \bar{x} = 34.06

Sample size, n = 134

Sample standard deviation, s = 23.83

a) 98% confidence interval

\bar{x} \pm z_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

z_{critical}\text{ at}~\alpha_{0.02} = \pm 2.33  

34.06 \pm 2.33(\frac{23.83}{\sqrt{133}} ) = 34.06 \pm 4.81 = (29.25,38.87)

b)  If a 95% confidence interval were constructed with these data, confidence interval would be narrower as the confidence level is decreasing as compared to 98%

c)  If a sample of 150 students had been studied, the width of confidence interval will decrease as the sample size increases.

8 0
3 years ago
Other questions:
  • During a long road trip, you drive 420 miles on a 12-gallon tank of gas. What is your gas mileage (in miles per gallon)?
    7·1 answer
  • BRAINLIST 22-24 pls
    10·1 answer
  • Find the area of a triangle with sides of length 6 and 26 and included angle 74 degrees.
    8·1 answer
  • The value 1 is a solution for x^2-6x
    14·1 answer
  • A rectangular poster has an area of 38 square feet. It is 9 1/2 feet wide at its base. What is the height of the poster?
    14·1 answer
  • Type the expression that results from the following series of steps:<br> Start with t times by 5.
    9·1 answer
  • Rick and Ranger sell Toyotas for Tom's Auto. Over the past year they sold 360 cars. Assuming Rick sells 5 times as many as Range
    12·1 answer
  • Carlton is solving a linear equation using the steps shown.
    5·2 answers
  • Someone please help me I’ll give out brainliest please dont answer if you don’t know
    5·1 answer
  • Subtract the sum and difference identities for sin x to derive 1/2 [sin(x+y)+sin(x-y)]= cos x sin y
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!