Mathematics College

PLSS HELP

Solve each system using SUBSTITUTION. Remember to check!



2) y = –2x – 1

y = 3x – 16

Answers

Answer 1

Answer:

(3, -7)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of Equality

Algebra I

Solving systems of equations using substitution/eliminationSolving systems of equations by graphing

Step-by-step explanation:

Step 1: Define Systems

y = -2x - 1

y = 3x - 16

Step 2: Solve for x

Substitution

Substitute in y:                     -2x - 1 = 3x - 16Add 2x on both sides:         -1 = 5x - 16Add 16 on both sides:         15 = 5xDivide 5 on both sides:       3 = xRewrite:                                x = 3

Step 3: Solve for y

Define equation:                    y = -2x - 1Substitute in x:                       y = -2(3) - 1Multiply:                                  y = -6 - 1Subtract:                                 y = -7

Step 4: Graph Systems

We can check the solution set to the systems of equations.

Where the 2 lines intersect is the solution set to the systems of equations.

The 2 lines and our algebraically solved solution sets are the same.

PLSS HELPSolve Each System Using SUBSTITUTION. Remember To Check! 2) Y = 2x 1 Y = 3x 16

Related Questions

4/5 as an equivalent fraction in 3 different forms

Answers

Answer:

4/5=8/10=16/15=20/30

Step-by-step explanation:

there you go may u help me on my question now pls i rlly need help.

John was swimming for hour anda half hours at a speed of 2 miles per hour.How far did he swim?

Answers

Answer:

3 miles

Step-by-step explanation:

2+1=3 znnsndndnndjd

Hello there, I hope you are having a great day :) Your Question: John was swimming for an hour and a half hours at a speed of 2 miles per hour.How far did he swim? So the answer would be that 1 Hour = 2 miles and then do 1/2 hours = 2 divide 2 miles 1 and 1/2 hours = 2 + 1 Miles so 1 and 1/2 Hours = 3 miles so john swim 3 miles.

Hopefully that helps you :)

Sandra received 15 twenty dollar bills. She spent 3/5 and saved 2/5 How much did she save

Answers

Answer:

300

Step-by-step explanation:

15 * 20 = 300

she spent 3/5 * 300 = 180

and saved 2/5 * 300 = 120

Hannah is driving 680 miles from Nashville to Orlando . If she has 306 miles left to drive, what percent of the trip has she driven ?

Answers

Answer:

Step-by-step explanation:

680 - 306 = 374

374/680 = 11/20 =

55%

Please help, I’m doing super bad In math and I need help

Answers

Answer:

It is A. Angle 7 and Angle 10

Order the decimal numbers from the smallest to the largest.
A) 0.1 0.4 0.2 0.3 0.8 0.6
B) 0.79 0.54 0.23 0.01 0.09 0.85
C) 1.86 1.93 2.45 1.13 5.85 3.67

Answers

A: 0.1, 0.2, 0.3, 0.4, 0.6, 0.8

B: 0.01, 0.09, 0.23, 0.54, 0.79, 0.85

C: 1.13, 1.86, 1.93, 2.45, 3.67, 5.85

4x - 7y = 1
6x + 4y = 16

Answers

Answer:

x = 2

y = 1

Step-by-step explanation:

The perimeter of a triangle is 10c+13. If two sides measure 3c+4, what is the measurement of the missing side?

Answers

Answer:

7c+3

Step-by-step explanation:

The triangle below is a scalene triangle.
5/1
Which statement is true?
A. m44 =m46
B. mdi + m2 =m44
c. ms=m41 +m4B
D.m41 =m42

Answers

Answer:

Option B is the correct answer

Step-by-step explanation:

By exterior angle theorem:

[tex] m \angle \: 1 + m \angle \: 2 = m \angle \: 4[/tex]

Alexander is a waiter at a restaurant. Each day he works, Alexander will make a guaranteed wage of $40, however the additional amount that Alexander earns from tips depends on the number of tables he waits on that day. From past experience, Alexander noticed that he will get about $10 in tips for each table he waits on. How much would Alexander expect to earn in a day on which he waits on 17 tables? How much would Alexander expect to make in a day when waiting on tt tables?

Answers

Answer:17 x 10=170 +40 = 210

Step-by-step explanation:

What was the second part?

2k-6-7+3k=-48 it is a multi step equation

Answers

Answer:

k = -7

Step-by-step explanation:

2k+3k-13=-48

5k - 13 = -48

5k = -48 + 13

5k = -35

k = -7

Can someone help i put a random answer

Answers

P= 36 units............,

Find the distance between the two points (9,21) and (-2,-10)

Answers

Answer:

(0,8)

Step-by-step explanation:

here you go!

Solve for y: 3(4y - 1) = 2(5y + ).
The solution is y =
The solution is

Answers

Answer:

12y-3=2(5y+1/2)

12y-3=10y+1

12y-10y-3=1

12y-10y=1+3

2y=1+3

2y=4

y=2

Step-by-step explanation:

Reggie wanted to compare his grades with the national averages. Which measure of central tendency would be the best for Reggie to use? A. the mean B. the median C. the range D. none of these measures

Answers

Answer:

D

Step-by-step explanation:

The mean is usually the best measure of central tendency to use when your data distribution is continuous and symmetrical, such as when your data is normally distributed.

Option (A)

Which measure of central tendency would be to compare?

Typically the trimean and trimmed mean will fall between the median and the mean, although in this case, the trimmed mean is slightly lower than the median. The geomtric mean is the lower than all measures except the mode. Measures of central tendency for the test scores.

Write an expression for the perimeter of the house use the work you completed in parts A and B to guide you (the numbers in the photo is Part A and B)

Answers

Answer:

The total length of Valerie’s walls is (2.5 × 4) + (21.25 × 3) + 32.

The total length of Seth’s walls is 3.5 + (22.75 × 2) + 58.

To find the expression for the perimeter of the house, add Valerie’s expression to Seth’s:

(2.5 × 4) + (21.25 × 3) + 32 + 3.5 + (22.75 × 2) + 58.

Step-by-step explanation:

its the platho answer so change it a bit

(-2x)^4 simplified??

Answers

Answer:

16x^4

Step-by-step explanation:

first compute -2 to the 4th power, then x to the 4th power

(-2)^4= positive 16 because of parentheses and the exponent(4) is even

(x)^4 is just x^4

so multiply 16 and x^4 together and you get 16x^4

Answer:

Step-by-step explanation:

here you go mate'

step 1

(-2x)^4  equation

step 2

(-2x)^4  put (-2x) in four places

(-2x)(-2x)(-2x)(-2x)

step 3

(-2x)(-2x)(-2x)(-2x)  multiply

answer

16x^4

Find the angle in degrees

Answers

Answer:

90 degrees

Step-by-step explanation:

its a 45-45-90 triangle

Which table shows a proportional relationship between x and y?

Answers

Answer: C or third choice

1     2     5     7

5   10    25   35

I hope this helps:

PLEASE HELP I DONT UNDERSTAND ​

Answers

Answer:

y=20x+25, this equation is linear, the rate of change is constant

Step-by-step explanation:

She starts with 25$, that doesn't change so its our constant.  Let x represent each week.  Each week she ears 20$

So, let y represent the total amount of money she has

y=20x+25, this equation is linear, the rate of change is constant

the answer is y=20x+25


A three-digit personal identification number is chosen using the digits 1-9. The digits cannot be repeated.
What is the approximate probability that the first digit will be 6?

Answers

Answer

1/9

Step-by-step explanation:

Hope this helps

Answer:

0.11111111111

Step-by-step explanation:

1/9 = 0.11111111111

List the negative integers with absolute value less than 5

Answers

Step-by-step explanation:

absolute value (or modulus) | x | of a real number x is the non-negative value of x without regard to its sign. For example, the absolute value of 5 is 5, and the absolute value of −5 is also 5. The absolute value of a number may be thought of as its distance from zero along real number

HELP PLEASEEEE!!! URGENT

Answers

Answer:

correct option is 2 n please thanks me and also votes

Which graph represents the function f(x) =3/2(2)x?

Answers

Answer:

your answer is on the graph

Slope:  

3

y-intercept:  

( 0, 0)

x      y

---------

0      0

1          3

Step-by-step explanation:

(GIVING BRAINLIEST!!)

Choose the division equation that represents the fraction shown.

one fourteenth = ________

A) 1 ÷ 14 = ________
B) 14 ÷ 11 = ________
C) 13 ÷ 14 = ________
D) 14 ÷ 13 = ________

Answers

Answer:

your answer is gonna be "A" if you want to type 1/14 into the calculator.

The value of expression one fourteenth = A) 1 ÷ 14

How can we interpret the division?

When 'a' is divided by 'b', then the result we get from the division is the part of 'a' that each one of 'b' items will get. Division can be interpreted as equally dividing the number that is being divided into total x parts, where x is the number of parts the given number is divided.

We need to find the expression of one fourteenth

A negative divided by a negative is positive, then;

one fourteenth = 1/14

Or

1 ÷ 14

Therefore, The value of  1 ÷ 14 = 1/14.

Learn more about division here:

brainly.com/question/26411682

#SPJ2

The guidance office at a high school surveyed their 12th grade students to know in which of four states they would prefer to live in after highschool. The results are summarized in the tso way frequency table below.

Which two-way table accurately represents the relative frequency for the whole table in this situation?

​

Answers

Hence, the two way frequency table is:

                  Action                 Drama                Comedy         total

Highschool  26/128=0.20          14/128=0.11           22/128=0.17     0.48      

College      20/128=0.16            28/128=0.22        18/128=0.14      0.52          

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

total                   0.36                        0.33                     0.31                   1

Step-by-step explanation:

" When a two-way table displays percentages or ratios (called relative frequencies), instead of just frequency counts, the table is referred to as a two-way relative frequency table " .

We are given a table or data  as:

                         Action              Drama                     Comedy     Total

Highschool        26                     14                            22                 62

College              20                     28                            18                 68

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

Total                            46                      42                           40               128

The total number of students in all the categories and classes are: 128

Hence the two way frequency table is constructed by dividing all the frequencies by the total number of students i.e. 128.

                               Action                 Drama                Comedy         total

High school      26/128=0.20          14/128=0.11           22/128=0.17     0.48      

College           20/128=0.16            28/128=0.22        18/128=0.14      0.52          

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

total                      0.36                        0.33                     0.31                   1

Answer:

It would be the first table (taking the test right now) p.s sorry if im late

Step-by-step explanation:

CA TX NY FL Total

Boys 0.21 0.095 0.16 0.11 0.575

Girls 0.125 0.11 0.065 0.125 0.425

Total 0.335 0.205 0.225 0.235 1

Water in a Play Pool
The function A(n) gives the amount of water remaining in a play pool after n minutes.
Consider the graph of A(n)

Answers

Answer:

6

Step-by-step explanation:

66

456000 has been rounded to the nearest thousand. What is the smallest possible number this could have been

Answers

Answer:

457,000 is your answer to the question

Step-by-step explanation:

PLEASE HELP 100 POINTS

Match each purpose to a text structure that would help an author achieve the purpose. tell the order of events that lead a star to become a black hole cause and effect tell the characteristics and features of a black hole sequence tell how black holes and whirlpools are alike and different compare and contrast tell why black holes form t o description​

Answers

Answer:

1-2

3-1

4-3

2-4

brainiest if I'm right

Answer:

Tell the order of events that lead a star to become a blackhole - Sequence

Tell the characteristics and features of a black hole - Description

Tell why black holes form - Cause and Effect

Tell how black holes and and whirlpools are alike and different - Compare and Contrast

Step-by-step explanation:

I hoped this helped you answer the problem.

What is the product?

2.2 x 11.6

15.72
25.52
155.2
255.2

Answers

Answer:

25.52

Step-by-step explanation:

hope it helps!

......

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