Use the substitution method to solve the system of equations. Choose the correct ordered pair. 2x+2y 16 y=x-4 A (62) B (2,-2) C. (6, -2) D. (2, 2)

Answers

Answer 1

Answer:

A

Step-by-step explanation:

[tex]2x + y = 16 \\[/tex]

[tex]y = x - 4[/tex]

as y is given, u just need to substitue y's value into 2x+y=16

then u can solve it


Related Questions

A group of three friends have 3 different jobs. Mallory makes $9 an hour at Kroger, Chandler makes $11 at HEB, and Sophia makes $8 at Cinemark. All together they worked a total of 40 hours and earned $370. Mallory worked twice as many hours as Chandler.
How many hours did each friend work?

Answers

Answer:

22 hour i think :)))))))

If we estimate that 10 people can fit in a 5ft by 5ft area, then what would be your estimate of how many people can fit on a basketball court measuring 94ft by 50ft?

Answers

Answer:

1,880 people will fit in 94 ft by 50 ft

Step-by-step explanation:

We can estimate this using the area

For 5 ft by 5ft ; 10 people can fit in an area of 5 * 5 = 25 ft^2

In an area of 94 ft by 50 ft, the number of people that can fit will be;

let’s start with the area

Area = 94 * 50 = 4,700 square feet

10 people will fit in 25 square feet

x people in 4,700 square feet

25 * x = 10 * 4700

25x = 47,000

x = 47000/25

x = 1,880 people

David is buying a television that is regularly priced at $450.The television is on sale for 20% off. Sales tax is 7%.Whicj expression will calculate the final price of the television.

Answers

Answer:

The final price of the television is $502.20.

Step-by-step explanation:

The information provided is:

CP = $450

d% = 20%

s% = 7%

Compute the final price of the television as follows:

[tex]SP=CP\times (1 + s\%)\times (1-d\%)[/tex]

     [tex]=450\times (1+0.20)\times (1-0.07)\\\\=502.2[/tex]

Thus, the final price of the television is $502.20.

Question 3 40 pts
An object is attached to a spring that is stretched and released. The equation d = a (cos(bt)) models the distance, d, of the object in inches above or below the rest position as a function of time, t, in seconds. If a = 5 and b = 5 Approximately when will the object be 2 inches above the rest position? Round to the nearest hundredth, if necessary.

Answers

Answer:

The object will be 2 inches above the rest position when at approximately 0.23 seconds

Step-by-step explanation:

The given parameters are;

The equation that models the distance, d, of the object in inches above or below the rest position = a×(cos(b·t))

If a = 5 and b = 5, we have;

d = 5 × (cos(5 × t))

When the object is approximately 2 inches above the ground, we have;

d = 2 = 5 × (cos(5 × t))

cos(5 × t) = 2/5

5 × t = cos⁻¹(2/5) ≈ 1.16

t =  (cos⁻¹(2/5))/5 ≈ 1.16/5

t ≈ 0.23 s

The object will be 2 inches above the rest position when t ≈ 0.23 s.

1000 + 6901 - 64 = ?​

Answers

Answer:

7837

Step-by-step explanation:

1000 + 6901 - 64 = ?​

=7837

Identify the interval(s) on which the quadratic function is positive.

y = 5x² - 46x + 77

Answers

Answer:

Step-by-step explanation:

y = 5x² - 46x + 77

If you want the roots they are 11/5 and 7 both positive.

I need to know how to graph and use a table to solve for y=3x+0

Answers

Answer:

Step-by-step explanation:

On a table, you'd have two columns: one for your input(x) and one for your output(y). If given an x value, put it into the equation to solve for y, and if you have a y value, put it into the equation for x. You can also come up with your own x values and put them into the equation if you need to create a table from scratch I'm not sure what you're asking but this will help you fill in a table. Here's and example for this equation.

X              Y

1                3

2               6

3               9

Graphs are pretty simple. Just find a value on the x-axis (horizontal), find the point on the line above or below this value, and look at what number it is for the y value. You can do this backwards if you need to find y when given x.

Help please if you can

Answers

it goes up each time bc its 2x2 is r 3x3 is 9 4x4 is 16 and 5x5 is 25. its each number time each number and it goes up 1 everytime. what are the options ?

Please help me someone

Answers

Answer:

Given: <1 + <2; Line AX = line BX

Prove: Line AC = BD

Step-by-step explanation:

someone please answer this for me :)

Answers

Answer:

1) 1 and 1/8

2) 2 and 5/7

3) 1 and 8/9

Hope this helps :)

Step-by-step explanation:

Answer:

1. 1 and 1/8

2. 2 and 5/7

3) 1 and 8/9

Step-by-step explanation:

YW is the perpendicular bisector of ZT.
If TW = 3, YW = 8, and XZ = 12. Find XY.

Answers

Answer:

XY = 17 UNIT

Step-by-step explanation:

Given:

TW = 3

YW = 8

XZ = 12

Find:

XY

Computation:

TW = ZW = 3

So,

XW = 12 + 3

XW = 15

So

XY = √XW²+YW²

XY = √15²+8²

XY = √289

XY = 17 UNIT

Applying the definition of perpendicular bisector and the Pythagorean Theorem, the value of XY is calculated as: 17 units.

Recall:

A perpendicular bisector of a line divides a line segment into two equal halves.Also, it forms two opposite right angles on the point of bisection.

Considering the diagram attached below, we are given that:

[tex]TW = 3\\\\YW = 8\\\\XZ = 12[/tex]

We need to find the length of XY.

Applying the Pythagorean theorem:

[tex]XY = \sqrt{XW^2 + YW^2}[/tex]

XW = XZ + WZ

XZ = 12 (given)

WZ = TW = 3 (congruent segments)

Thus:

XW = 12 + 3

XW = 15

Plug in the values of XW and YW into [tex]XY = \sqrt{XW^2 + YW^2}[/tex]

Thus:

[tex]XY = \sqrt{15^2 + 8^2}\\\\\mathbf{XY = 17}[/tex]

Learn more here:

https://brainly.com/question/1761937

4. Ben spent $380 on food last month. If Ben's monthly income is $4000, what percent was spent on food? * VI​

Answers

Answer:

9.5%

Step-by-step explanation:

Rob has 40 coins, all dimes and quarters, worth $7.60. Write the system needed to determine the
number of dimes and quarters.

WILL GIVE BRAINLIEST

Answers

Answer:d + q = 40 -----> d = 40 - q

10d + 25q = 760

Substitute!

10(40 - q) + 25q = 760

400 - 10q + 25q = 760

15q = 360

q = 24

d = 40 - 24

d = 16

Step-by-step explanation:

8 to the power of 2x=4 solve for x

Answers

Answer:

x = 1/3

Step-by-step explanation:

8^2x = 4

6x = 2

x = 1/3

Find angle YWX using the perpendicular or angle bisector method.

Answers

9x-28=5x-8
9x=5x+20
4x=20
x=5
(9x-28)+(5x-8)=
(17)+(17)=34
YMX= 34 degrees

Answer:

x = 5

Step-by-step explanation:

9x - 28 = 5x - 8 (because Y and X are equal, and XZ and YZ are equal)

add 8 to both sides

9x - 20 = 5x

subtract 9x from both sides

-20 = -4x

divide 4x from both sides

5 = x

x = 5

7 divided by 2, plus the product of −4 and a number s

Answers

Answer:

Answer at the bottom!!

Step-by-step explanation:

If you need equation:

7/2=3.5

3.5+(-4*s)=y

Hope this helps!!

BRAINLIEST!!!!! PLEASE ANSWER!!!!!

Answers

Answer:

11/5

Step-by-step explanation:

the line goes up 11, and over 5, therfore the slope would be rise over run...so 11/5

the ratio of 70 to 210

Answers

If you're looking for the lowest ratio for 70 to 210, it should be

1:3

70min=70×60=4200sec

ratio=4200/210

=210×20/210

=20/1

=20:1

Your subtotal at the store was $58.89. You have a 30% off coupon. If the sales tax rate is 5.5%, what is the total price for your shopping trip?

Answers

Answer:

$43.48

Step-by-step explanation:

58.89x.30=17.68

58.89-17.68=41.21

41.21x.055=2.27

41.21+2.27= $43.48

Answer:

$43.49

Step-by-step explanation:

When you take of 30%, multiply by 0.7

When you add 5.5%, multiply by 1.055

Start with $58.89

Take off 30%: 0.7 * $58.89 = $41.22

Add 5.5%: 1.055 * $41.22 = $43.49

What is the slope for 22x-5y=-8

Answers

Answer:

22/5 is the slope I think

Step-by-step explanation:

22x-5y=-8

-22x

-5y=-8-22x

Divide by -5

Y= 8+22x/5

PLEASE HELP!! 15 POINTS!!!!

Answers

A. Is y=2x+3
B. Is y=-x+6 or in pt slope form y-5=-1 times (x-1)
C. Is (1,5) you can graph the slope intercept form equations to show your work :)

The freezing point of helium is 0.95 Kelvin. What is this temperature in degrees Fahrenheit?​

Answers

Answer:

-457.96

Step-by-step explanation:

Step-by-step explanation:

273.15 + °C = K

°C = K - 273.15

0.95K to °C = 0.95 - 273.15 = -272.2°C

°C to °F

(9/5 °C) + 32 = °F

(9/5 × -272.2) + 32 = °F

-489.96 + 32 = °F

= -457.96°F

please mark brainliest

What is true about the number of sides in any regular polygon that has at least one line of symmetry passing through two vertices?


Answers:

I found the answer. It's The number of sides are even.

Answers

Answer:

B

Step-by-step explanation:

Took the quiz

A bicycle has a listed price of $811.98 before tax. If the sales tax rate is 7.5%, find the total cost of the bicycle with sales tax included.
Round your answer to the nearest cent, as necessary.

Answers

Answer:

Step-by-step explanation:

811.98*7.5%= 60.898

811.98+60.898= 872.787 round to $872.79

Answer:

$872.88

Step-by-step explanation:

811.98 x 7.5%= 811.98 x 0.075

811.98 x 0.075= 60.90

811.98+60.90= 872.88

what is the slope of a line with endpoints (-11,5) and (5,-7)

Answers

Answer:

-6/8

Step-by-step explanation:

Slope=y1-y2/x1-x2

Where (X1,y1) is (-11,5) and (X2,y2) is(5,-7)

Slope=5+7/-11-5

=-12/16

= -6/8

So the slope is -6/8

Slope K = (y2-y1)/(x2-x1)
Point 1 = (-11,5) Point 2 = (5,-7)

Slope K = (-7-5)/(5+11) = (-12)/16 = -3/4

Please someone help me with this question! :)

Thank you

Answers

Answer:

It's 26Step-by-step explanation:6+24=3017+24=4126+24=50***42+24=66

What is the slope of the line

Answers

Answer:

[tex]m=\frac{-1}{3}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Find points from the graph.

Point (2, 0)

Point (5, -1)

Step 2: Find slope m

Substitute:                    [tex]m=\frac{-1-0}{5-2}[/tex]Subtract:                       [tex]m=\frac{-1}{3}[/tex]

And we have our answer!

what's the answer to this quadratic equation
(x - 18)^2 = 1

Answers

Answer:

x=17 or x=19

Step-by-step explanation:

(x−18)^2=1

First, simplify both sides of the equation.

x*2−36x+324=1

Then subtract 1 from both sides.

x^2−36x+324−1=1−1

x^2−36x+323=0

Factor left side of equation.

(x−17)(x−19)=0

Then set factors equal to 0.

x−17=0 or x−19=0

x=17 or x=19

Answer:

Its either x=17 or x=19

Step-by-step explanation:

(2,-4); rotation 180 degrees

Answers

Answer:

(-2, 4)

Step-by-step explanation:

the answer is (-2,4)

If a circle with a diameter of 4 inches rotates 1000°, what distance will any one spot on
its edge actually travel?

Answers

We first convert from degrees to radians multiplying by π/180:

θ = 1000° × π/180 = 17.45 rad

The radius is:

r = d/2 = 4 in /2 = 2 inch

So, The distance traveled is given by the product of the angle in radians and the radius. This is:

d = θr = (17.45 rad)(2 inch) = 34.9 inch

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