PLEASE HELP!!

solve

2x + 3y = 12
( 6x - y = 4 )

A. x = - 1 1/2, y = -13
B. x = 1 1/5, y = 3 1/5
C. x + 1 1/3, y = 4
D. x = 11, y = -3 1/3

Answers

Answer 1

Answer:

I am not sure but

Step-by-step explanation:

try to use to website https://www.symbolab.com/solver/pre-algebra-calculator

you can chose what your learning and it gives you the right answer. make sure you put the numbers in correctly. if you don't it will mess every thing up for that problem. That one reason I have a B in math cuz i use that site for my math. and it shows you how to do it with steps

please give me a heart if the site really helps you guys :)


Related Questions

Ronnie's teacher wrote this expression on the board. (-4)(2) + (10/2) What is the value of this expression?

Answers

Answer:

The answer would be -3.

Step-by-step explanation:

If you follow PEMDAS, the first set of parenthesis, (-4)(2), would equal -8. The next set of parenthesis, (10/2), would equal 5. Adding -8 and 5 together gives you -3.

please help solve for x step by step ASAP!

Answers

Answer:

x=26

Step-by-step explanation:

the angle is a right angle so

90-37= 53

53-1=51

52/2= 26 thats x?

if you dont understand i can still describe more

A population of 6000 bacteria is growing at a rate of 6% each day. Write 2 an equation that expresses the number of bacteria at time x.

A. y = 6000(.06)×
B. y = 6000(1.06)×
C. y = 6000(.94)×​

Answers

Answer: B. y = 6000(1.06)×

Step-by-step explanation: If it is growing at six percent (0.06) each day then you must also account for the amount that is already there (1).

HELP find the values of x (see image)

Answers

I don’t know I just have to answer this so I can search a question

Answer:

4) 10

5) 15

6) 20

7) 4

8) 27

equations used to solve:

4) 4x+50=90

5) (2x+60)+6x=180

6) 3x+30=90

7) (8x+120)+7x=180

8) 99+3x=180

Which expression is equivalent to (q? – 16)?
M. (q - 4)2
P. (9 + 4)(9-4)
R. (q + 8)(9 - 2)
S. (9-8)(9 + 2)

Answers

Answer:

nothing

Step-by-step explanation:

because the given is error

Find the product. 1.5m6(-2m2)4

Answers

9514 1404 393

Answer:

  24m^14

Step-by-step explanation:

It looks like you want to simplify ...

  [tex]1.5m^6(-2m^2)^4=(1.5)(-2)^4(m^6)(m^{2\cdot4})\\\\=(1.5)(16)m^{6+8}=\boxed{24m^{14}}[/tex]

__

The applicable rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  (a^b)^c = a^(bc)

  (ab)^c = (a^c)(b^c)

I need help im doing IXL right now (BB.3 Complete a function table: quadratic functions)
i just need help with this final question (posted with a picture)

Answers

Answer:

0, 2, 4

Step-by-step explanation:-2 + 2 = 0 + 2= 2 + 2 = 4

The function table is solved and the quadratic equation is f ( x ) = -3x²

What is Quadratic Equation?

A quadratic equation is a second-order polynomial equation in a single variable x , ax² + bx + c=0. with a ≠ 0. Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.

The roots of the quadratic equations are

x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )

where ( b² - 4ac ) is the discriminant

when ( b² - 4ac ) is positive, we get two real solutions

when discriminant is zero we get just one real solution (both answers are the same)

when discriminant is negative we get a pair of complex solutions

Given data ,

Let the quadratic equation be represented as A

Now , the value of A is

f ( x ) = -3x²

when x = -2

f ( -2 ) = -3 ( -2 )²

f ( -2 ) = -12

And , when x = 0

f ( 0 ) = 0

when x = 2

f ( 2 ) = -12

when x = 4

f ( 4 ) = -48

Hence , the function table is f ( x ) = { -12 , 0 , -12 , -48 }

To learn more about quadratic equations click :

https://brainly.com/question/25652857

#SPJ2

Find the area of the shaded region

Answers

Answer:

128 centimeter

Step-by-step explanation:

sana makatulong

According to the US Census, the percent of residents aged 65 or older in the 50
states and District of Columbia has mean 13.26% and standard deviation of
1.67%. Find and interpret the standardized scoreſfor the state of Colorado, which
had 9.7% of residents age 65 or older. *

Answers

Answer:

z = -2.13

Therefore, the standardized z score for the state of Colorado means the score is below the mean.

Step-by-step explanation:

The formula for z score is given as:

z = (x-μ)/σ,

where

x is the raw score = 9.7%

μ is the population mean = 13.26%

σ is the population standard deviation = 1.67%

z = z score or standardize score

Hence,

z = 9.7 - 13.26/1.67

z = -2.13174

Approximately z = -2.13

Therefore, the standardized z score for the state of Colorado means the score is below the mean

A pet store is having a pet fish sale. Mrs. Smith bought koi and paid with a​ $50 bill. Write an algebraic expression to represent how much change Mrs. Smith got back.

Answers

Hi it’s not really important that we are all over you have the moneylender and the kids and

The expression that represents the change Mrs. Smith got back is 50 - x dollars.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, A pet store is having a pet fish sale.

let, the cost of the Koi fish is 'x' dollars.

Therefore, With a $50 bill change(C) Mrs. Smith got back is represented by the expression,

C = (50 - x) dollars.

So, The change Mrs. Smith got back is 50 - x dollars.

learn more about numerical expressions here :

https://brainly.com/question/29199574

#SPJ5

Shana has three black pens, two red pens, and four blue pens in her book bag. Shana randomly chooses a pen from her book bag without looking. What is the probability that the pen is red or blue?

A. 2/3
B. 2/9
C. 4/9
D. 3/9

Answers

Answer b seems like the obvious answer but i don’t think it is

3 Black Pens, 2 Red Pens, 4 Blue Pens

Should be 6/9 but since that's not an option I'd try  D but I could be wrong I just thought I'd try an help!

If it didn't I'm sorry

or B & C if you can choose 2 answers!

5
Which of those points does not lie on the line y = 3x + 5*
(1 Point)
O (1,8)
O (4, 17)
O (-2, 11)
0 (0,5)

Answers

Answer:

 point (-2,11)  does not lie on the given line

Step-by-step explanation:

To find : Which of the following points does not lie on the line ?

Solution :

To determine the point lie on line or not we have to put points in equation if it satisfy then it lie otherwise not.

a) Point (1,8)

Line  y=3x+5

Substitute x=1 and y=8

8=3(1)+5

8=8

(1,8) point lie on the line.

b) Point (4,12)

Line y=3x+5

Substitute x=4 and y=17,

17=3(4)+5

17=12+5

17=17

(4,17) point does not lie on the line.

c) point (-2,11)

Line y=3x+5

substitute x=-2 and y=11

11=3(-2)+5

11=-6+5

11 is not equal to -1

d) Point(0.5)

Line y=3x+5

Substitute x=0 and y=5

5=3(0)+5

5=5

Salma made 378 for 18 hours of work. At the same rate, how much would she make for 5 hours of work?

Please help me answer this question!

Answers

She would make $105 all you do is divide 378 by 18 and then multiply that answer by 5 good luck!

(7) hi I'm new can I get some help I really don't know what to do!

Answers

Answer:

60

Step-by-step explanation:

ez

Answer:

60

Step-by-step explanation:

to find the area of a trapezoid you do (a+b)/2 x h

so to find the area of yours you do (18+6)/2 x h

18 + 6 = 24

24 divided by 2 = 12

12 x 5 = 60

1/8 of a cup of cinnamon was sprinkle evenly over some pieces of toast. if 1/32 of a cup was sprinkled on each piece, how many pieces were sprinklered?

A) 4

B) 6

C) 7

D) 8

Answers

C because C is the right answer

Answer:

the answer is 4

Step-by-step explanation:

i took the test =p

What is the lower Quartile (Q1) for this data set?

Answers

Answer:

d adm d

Step-by-step explanation:

mnmnmnmncmmxmxmxmnxmnmmncxmcx



Calculate the perimeter of this figure. Round your answer to 2 decimal places. Show all work and
include proper units. DONT FORGET TO FIND MISSING SIDE
6 ft
10 ft
6 ft
10 ft
TEIS PM

Answers

Answer:

32 ft

Step-by-step explanation:

that's a right answer

If Jeff is a manager at the local movie theatre, his annual salary is $46,000 and his company gives a 1.5% raise each year. What will be the total amount of money Jeff earns in 4 years assuming he gets the raise each year?

Answers

Answer:

59000

Step-by-step explanation: yep

Please please please please please please help me a b c or d

Answers

Answer:

35 degree angle the line passes through the 30 and 40

Step-by-step explanation:

so c

Find x, the missing side length in the right triangle 18 8

Answers

Answer:

19.7

Step-by-step explanation:

a^2+b^2=c^2

so 18^2+8^2=x^2

324+64=388

x is about 19.7

A^2 + B^2 = C^2
18^2 + 8^2 = 388
C = 20

The area of the triangle below is 6.75 square meters. What is the length of the base?

Answers

Answer:

4.5

Step-by-step explanation:

I hope this helps, sry don't have enoug h time to explain

find the equation of the line that passes through points 4 and 7 and 2 and 3

HELP​

Answers

Answer:

y=2x-1

Step-by-step explanation:

1. 7-3/4-2=2 so the slope would be 2

2. substitute (4,7) in y=mx+b which gets b=-1

3. so this means that the equation is y=2x-1

The speed of a train is 35 miles per hour less than 2 times the speed of a car. If the speed of the train is 60 miles per hour, how fast is the car going? Leave the answer as a fraction.
plz help 20 points

Answers

Answer:

[tex]120miles \: per \: hour[/tex]

Solve the linear inequality: x ≤ -x + 4

Answers

Answer:

x ≤ 2

Step-by-step explanation:

i hope this helps :)

PLEASE HURRY!!!
Write an explicit formula for [tex]a_{n}[/tex], the nth term of the sequence 35, 42, 49, ....

Answers

Answer:7n+28

Step-by-step explanation:

What is the volume of this pyramid?

Answers

Answer:

150 cm

Step-by-step explanation:

It's 150 cm because if you multiply L x W x H, you will get your answer. So it would be 6 x 5 x 5 = 150.

find the indicated side of the triangle a=

Answers

Ar of triangle = 3b , Ar of triangle = 6a a = 12/root3

Find the value of x needed to make the equation True. 3/4(20x-8)-3=54
A. x=3.8
B. x=4.2
C. x=4
D. x=3.3

Answers

Answer:

The answer is option B, x = 4.2

Find the output y when the input x is -5
y=?

Answers

Answer: y=7

Step-by-step explanation: looking at the graph when x is -5 y= 7

Find the slope between two points:
(-2, 0) and (-9, 8)

Answers

Answer:

y = -1.14286x - 2.28571 (slope of the line is -1.14286)

Step-by-step explanation:

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