Using any method (table, graph, substitution), calculate y=−2x+7 for x=4

Answer: 4

Step-by-step explanation: yeah it a good website:)

Answer:

4

Step-by-step explanation:

when you have two cows, and get two more cows, you now do in fact have 4 cows

Answer:

(2,2)

Step-by-step explanation:

2x+3y=10

x−2y=−2

​In order to solve by elimination, coefficients of one of the variables must be the same in both equations so that the variable will cancel out when one equation is subtracted from the other.

2x+3y=10,x−2y=−2

To make 2x and x equal, multiply all terms on each side of the first equation by 1 and all terms on each side of the second by 2.

2x+3y=10,2x+2(−2)y=2(−2)

Simplify.

2x+3y=10,2x−4y=−4

Subtract 2x−4y=−4 from 2x+3y=10 by subtracting like terms on each side of the equal sign.

2x−2x+3y+4y=10+4

Add 2x to −2x. Terms 2x and −2x cancel out, leaving an equation with only one variable that can be solved.

3y+4y=10+4

Add 3y to 4y.

7y=10+4

Add 10 to 4.

7y=14

Divide both sides by 7.

y=2

Substitute 2 for y in x−2y=−2. Because the resulting equation contains only one variable, you can solve for x directly.

x−2×2=−2

Multiply −2 times 2.

x−4=−2

Add 4 to both sides of the equation.

x=2

The system is now solved.

x=2,y=2

Correct choice is D) 2,2

5 2/4 because 3 and 2 are 5 and 1/4 plus 1/2 make up 2/4 meaning its either 5 2/4 or 5 1/2

now i get brainly <3

Answer:

(x - 3)² + (y + 9)² = 25

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r is the radius

Given area = 25π , that is

πr² = 25π ( divide both sides by π )

r² = 25 ( take the square root of both sides )

r = [tex]\sqrt{25}[/tex] = 5

With centre (h, k) = (3, - 9 ) and r = 5 , then

(x - 3)² + (y - (- 9) )² = 5² , that is

(x - 3)² + (y + 9)² = 25

Answer:

hiiiiiiiiiiiii

Step-by-step explanation:

Answer:

She ate 5 apple slices

Step-by-step explanation:

25% of 20 is 5.

That means if she ate 5 slices, she ate 25% of the apple slices.

Hope this helped! Please give brainliest if it did help!

Answer:

5

Step-by-step explanation:

25% of 20 is 5

Answer:5 times more

Step-by-step explanation:

9.1 x 5 is 45.5

0.1 x 5 = 0.5

9.0 x 5= 45.0

0.5 + 45.0 = 45.5

Answer:

Step-by-step explanation:

Im not sure about the first two about fraction bars, a fraction bar looks like this 1/10 or 4/9, maybe the question is asking you to make a fraction of each side so that they both equal the same thing using common denominators.

In that case #2 would be 21/3= 21/7

still not sure about #1

X+32=40

subtract 32 on each side

x+32-32=40-32

x=8

At a restaurant, Mike and his three friends decided to divide the bill evenly. If the total bill was $51.24, how much did each person pay?

Write and solve an equation for the above situation. Use "b" as the variable

4b=51.24

divide each side by 4

4b/4= 51.24/4

b=12.81

Each friend spent $12.81 on the bill.

How many packages of diapers can you buy with $40 if one package costs $8?

Write and solve an equation for the above situation. Use "p" as the variable

8p=40

divide each side by 8

8p/8=40/8

p=5

You can buy 5 packages of diapers with $40

Answer:

around 4.52.

Fraction form: [tex]4\frac{52}{100}[/tex]

Step-by-step explanation:

Brainliest?

Answer:

-12x+19

Step-by-step explanation:

Combine like terms first soooo

-5x-7x=-12x

10+9=19

-12x+19 is your answer

Answer:

70 miles

Step-by-step explanation:

30 (mi) +40 (mi) =70

Answer:

Step-by-step explanation:

(9km/hr)(1000m/km)(hr/60min)(min/60s)=2.5m/s

Answer:

0.74

Step-by-step explanation:

3/50 = 0.6

0.6<0.74

Answer:

x = -1, y = 0.125

Answer: (-1,1/8)

Step-by-step explanation:

Coordinates are given in (x,y) format. The x axis runs left to right and the y axis runs up and down.

Point P is on -1 of the x axis and appears to be between 0 and .25 on the y axis. This would be half of .25. .25 is 1/4 as a fraction. Half of 1/4 is 1/8. So the coordinates for point P are (-1,1/8)

Answer:

160/3π

Step-by-step explanation:

π ·r² · h/3

π · 4² · 10/3

π · 16 · 10/3

= 160/3 π

Answer:

19.04$

Step-by-step explanation:

Answer:

   Simplify each side of the equation by removing parentheses and combining like terms.

   Use addition or subtraction to isolate the variable term on one side of the equation.

   Use multiplication or division to solve for the variable.

Step-by-step explanation:

Answer:

Solution

= −7

Step-by-step explanation:

3 + 9 = − 12

3 + 9 − 9 = − 12 − 9

Subtract the numbers

Subtract the numbers

3 = − 21

Divide both sides of the equation by the same term

3 = − 21

3/3 = −21/3

Solution

= −7

Answer: 30 inches

Step-by-step explanation:

The sides of the square are equal and so if the area is 25 inch², each side can be acquired by square rooting that figure:

= √25

= 5 inch per side for the square

Each side of the triangle is twice as long as a side of the square:

= 5 * 2

= 10 inches

There are three sides to a triangle so the perimeter is:

= 10 * 3

= 30 inches

Answer:

10

Step-by-step explanation:

you divide 5 and 50

Answer:

1260

Step-by-step explanation:

180 x 2

Answer:Y=41

Step-by-step explanation:

Answer:

16 meters

Step-by-step explanation:

Candice is decorating a ballroom ceiling with garland. The width of the rectangular ceiling is 30 meters and the diagonal distance from one corner to the opposite corner is 34 meters. How much garland will Candice need for the length of the ceiling

The formula to solve for the above question is:

Diagonal² = Width² + Length²

34² = 30² + L²

Collect like terms

L² = 34² - 30²

L = √34² - 30²

L = √(256)

L = 16 meters

Therefore, the length of the ceiling is 16 meters

Answer:

OPTION ONE

and

OPTION FOUR

Step-by-step explanation:

100% correct edge

do not pick a and b as its not B !!!!

The value of x is the limit positive infinity when x approaches the values from the left the options one and four is correct.

We have given that,

The function, f(x) = sec(x), is plotted below.

On a coordinate plane, parabolas repeat.

The limit is a  value that a function (or sequence) approaches as the input (or index) approaches some value.

A parabola opens up approaches StartFraction pi Over 2 EndFraction, has vertex (0, 1), and approaches StartFraction pi over 2 EndFraction. The parabola flips over the x-axis at every measure of pi.

We have to determine the value for which values of x is the limit positive infinity when x approaches the values from the left.

from the graph, we have options one and four is correct.

To learn more about the graph visits:

https://brainly.com/question/4025726

#SPJ2

Answer:

Question is incomplete so I'll use a reference.

Assume the person whose house the car went to is 21 miles away.

The car would have had to go back and forth so the total distance spent would be:

= 21 + 21

= 42 miles

The car uses 1 kilowatt hour to go 3 miles. Now it has to go 42 miles.

The number of kilowatt hours it will need are:

= Distance / distance per kilowatt hour

= 42 / 3

= 14 kilowatt hours

Answer:

Length of fancying need = 36 m

Step-by-step explanation:

Given:

Area of square field = 81 m²

Find:

Length of fancying need

Computation:

Area of square field = 81 m²

Side² = 81

Side = 9 m

Length of fancying need = 4 x side

Length of fancying need = 4 x 9

Length of fancying need = 36 m

Answer:

B t= 14

Step-by-step explanation:

t + 7 = 21

collect like terms

t = 21 - 7

t = 14

Answer:

the answer is (-2,-3)

Step-by-step explanation:

please mark brainliest

Answer:i dont see anything

Step-by-step explanation:

Answer:

brainliest please?

:)   <3

Step-by-step explanation:

3 goes to A

1 goes to B

6 goes to C

5 goes to D

and 8 goes to E