Mathematics High School

Tell whether the ordered pair is a solution of the system of linear equations.

8x+2y=2
2x+y=15
(1,3)

Answers

Answer 1

Answer:

Step-by-step explanation:

8x + 2y = 2

-4x - 2y = -30

4x = 28

x = 7

14 + y = 15

y = 1

(7, 1)

Related Questions

X+7=-3

find the variable

Answers

Answer:

x = -10

Step-by-step explanation:

x+7 = -3

Subtract 7 from each side

x+7-7 = -3-7

x = -10

Make p the formula: y=3p²-4​

Answers

Answer:

p=[tex]\sqrt{y}[/tex]-1

Step-by-step explanation:

y=3p²-4

[tex]\sqrt{y}[/tex]=3p-4

-3p=[tex]\sqrt{y}[/tex]-4

p=[tex]\sqrt{y}[/tex]-4+3

p=[tex]\sqrt{y}[/tex]-1

What are the steps for -4m - 12

Answers

Subtract it like you would and then add - so it would be -16

7) When Jake started going to the gym he could lift 25 lbs. One month later he could lift 45 lbs. What is the percent of change in the number of pounds he can lift?

Answers

Answer:

80% increase

Step-by-step explanation:

45 - 25 = 20

20/25 = 0.8

0.8 X 100 = 80

6. Solve each system of equations. 7x – 12y = 180 7x = 84 b. | -16y = 4x 4x + 27y= 11​

Answers

Answer:

1: y= -15x

2: in the ss

Step-by-step explanation:

The sequence an = 27( one third )n − 1is graphed below:

coordinate plane showing the points 2, 9; 3, 3; and 4, 1

Find the average rate of change between n = 2 and n = 4. (6 points)

Question 10 options:

1)

negative one fourth


2)

one fourth


3)

−4


4)

4

Answers

Answer:

-4

Step-by-step explanation:

THE ANSWER IS -4

PLEASE MARK ME AS BRAINLIEST

Answer:

Its -4

Step-by-step explanation:

I took the test and got it right.

How do you find the square root of a number? For example: the square root of 64 or something.

Answers

using a calculator hit 2nd then x^2 and the number you want then enter

Please help I just need to finish these questions

Answers

Answer:

C

Step-by-step explanation:

Not integer, irrational

hiiiii! ok plz plz help!!!! i’ll mark brainlist first answer! also know that ur worth every breath! <3

marco and his friends brought game tokens for $15 and three admission tickets to fun palace. let t represent the cost of an admission ticket. determine if each statement below is true or false.

b. if each admission ticket costs $2.50, then marco and his friends spent $22.50 in all. TRUE OR FALSE????

Answers

Answer: True

Step-by-step explanation:

Cost = 15 + 3t

22.5 = 15 + 3(2.5)

22.5 = 15 + 7.5

22.5 = 22.5 <— true

Answer:

true

Step-by-step explanation:

2.50 x 3 = 7.50

15 + 7.50 = 22.50

22.50 = 22.50

find the product using suitable properties (- 13 )x (13 + -( 3))​

Answers

Answer:

##############

Step-by-step explanation:

#############

HELP WITH MATH IF YOU DON'T KNOW THE ANSWER THEN GET OUT OF THE QUESTION

Answers

Answer:

1.79 or 43/24

Step-by-step explanation:

179 pregunta 43/24

I give up someone help

Answers

Answer: between march and april

Step-by-step explanation:

between march and april it goes up $8

between june and july it goes up $5

the change is greater in march and april

Answer:

Step-by-step explanation:

Okay i think what they are asking is which one is greater when you add march and april and then june and july to see which one is greater . Maybe hope this helps !

Someone can type 135 words in 3min at rate that rate how many Minutes would it take her to 450 words

Answers

Approximately 9.3 minutes

Which point is the image of (-7,1) reflected across the y-axis? "-enter answer as an ordered pair without
spaces**

Answers

Answer:

The image point of (-7, 1) after reflection across the y-axis is:

(7, 1)

Step-by-step explanation:

When a point P(x, y) is reflected across the y-axis, we reverse the sign of the x-coordinate while the y-coordinate remains the same.  

Thus,  

The rule to reflect a point across the y-axis is:  

P(x, y) → P'(-x, y)

In our case, we are given the point (-7, 1)

Let say the point is A(-7, 1).

Thus, using the rule to reflect a point across the y-axis is:  

P(x, y) → P'(-x, y)

A(-7, 1) → A'(-(-7), 1) → A'(7, 1)

Therefore, the image point of (-7, 1) after reflection across the y-axis is:

(7, 1)

PLEASE HELP ME I WILL GIVE BRAINLIEST WILL HELP ME PLEASE HELP "A phone sells for $137.99. It is now on sale for 1/10 off the original price. Tom has a coupon for an extra 5% off the sale price. To the nearest dollar, how much less that the original price will Tom pay for the phone."

Answers

Tom will pay 20.01 less than the original price

2x + 3 + x2, forx: 4

Answers

the answer should be 19

How many real solutions are there to the equation x2 - 7x + 12 = 0?
о
оооо
но со

Answers

I was butt x2-7+12=0 what

Write an equation of a line with the given slope and y intercept 1/3 and -1

Answers

Answer:can you show a picture?

Step-by-step explanation:

Answer:

x−y+4=8

7x+y=0

3x+y=16

Step-by-step explanation:

i hope this helps you

URGENT HELP!
is it
A)ASA
B)SSS
C)AA
D)SAS
for each of the three triangles?

Answers

1Sas
2.Aa
3.SSS. Hufuibgjhvghtt hit s

what is –7y = –8y + 2

Answers

Answer:

Step-by-step explanation:

Have a good day

Answer:

y= 2

Step-by-step explanation:

hope this helps:)))

Please help me it’s due today

Answers

slope is 0 , y intercept is 1 the answer is j x

Answer:

slope:(-0.5) y-intercept:0 equation:(-0.5x)

Step-by-step explanation:

To find slope, you use the formula y2-y1/x2-x1

For example, I used the first 2 sets of coordinates used in the table

(-2,1)&(-1,0.5)

First Part: 0.5-1= -0.5

Second part: -1-(-2)=1

Third Part: -0.5/1=(-0.5)

Y-intercept: In order to find the y-intercept, x needs to be 0.

Y-intercept=0

Equation:

The form for the equation should be, mx+b

B=Y-intercept

M=Slope

X=variable

The slope is -0.5 and you add the x after -0.5

Since the y-intercept is 0, it doesn't have a value so putting 0 at the end would be unnecessary. Slope:-0.5x


7 watermelons cost $8.96. How many full watermelons can you buy for $20.

Answers

Answer:

If each Watermelon costs $8.96, you can buy two

suppose a triangle with the vertices a(-2,4)b (-1,-3) and c (4,-2) were dilated with the center of dilation at the origin and with a scale factor of 2.5 what will be the ordinates be for c'

Answers

2.5 * 4 = 10
-2 * 4 = -8

c’ = (10, -8)

Pren recorded this data set, which contains an outlier.

204, 216, 111, 224, 230, 211, 210, 198, 200, 218

What numbers represent the range, lower quartile, and upper quartiles?

Answers

Answer:

111,200,204,210,211

Step-by-step explanation:

what is (14x - 2) - (11x -21) ​

Answers

Answer:

3x + 19

I don't have time to explain but I hope I helped :)

Write the equation of the line in fully simplified slope-intercept form.

Answers

Y=3/1x+-1 hope this is correct

Are the following functions linear or nonlinear? Drag the tiles to complete the statements.
Tiles may be used once, more than once, or not at all.
Function A
x 3 6 9 12 15
y 5 10 15 20 25

Is function a linear or nonlinear is function B linear or nonlinear. Function B is the picture

Answers

Step-by-step explanation:

Function A Linear

Function A LinearFunction B (on the graph) nonlinear (exponential function)

please help, giving brainliest!!

Answers

Answer:

It is times 4

Step-by-step explanation:

32 divided by 8 equals 4

Someone plz help!!!
I will give brainliest

Answers

Answer:

17.4 because 12 x 1.45 is 17.4

question in the picture thankss

Answers

G because you end up with the equation y= .5x+5
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