What is the volume of this cube?

A. 4
B.3
C.6
D.1​

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

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:

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

44:56

im probably wrong im so sorry

Answer: The sales tax on the meal is 6%, and the family leaves a 20% tip. What is the total cost of the meal? Please answer with whole number or decimal. Linda C. answered • 01/05/15. We can do this problem a few different ways.

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

Answer:

x = 4

Step-by-step explanation:

3x - 5 = 2x -1

Add 5 to both sides

3x - 5 + 5 = 2x - 1 + 5

           3x = 2x + 4

Subtract 2x form both Sides

3x - 2x  = 2x - 2x + 4

       x = 4

Answer:

Step-by-step explanation:

a sandwich store charges $10 delivery fee and $4.50

b. what is the total cost for x sandwiches ?

           total cost equals the cost of the sandwiches plus the delivery fee

one sandwich cost $4.50    

x number of sandwiches cost        x times $4.50   or $4.50(x)

delivery fee = $10

total cost equals the cost of the sandwiches plus the delivery fee

                            total cost  =        $4.50(x)      +               $10

total cost  =  $4.50(x)  +  $10

Answer:

0.74

Step-by-step explanation:

3/50 = 0.6

0.6<0.74

Answer:

B t= 14

Step-by-step explanation:

t + 7 = 21

collect like terms

t = 21 - 7

t = 14

Answer:

please provide table

there is no table in question

Answer:

quisiera ayudarte pero no hablo inglés:(

Answer:

1260

Step-by-step explanation:

180 x 2

Answer:Y=41

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:

19.04$

Step-by-step explanation:

Answer:

around 4.52.

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

Step-by-step explanation:

Brainliest?

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:

[tex]250 - 20x=y[/tex]

Step-by-step explanation:

As per the given problem, Steve starts with $250, and spent $20 a week, the problem mentions nothing about Steve's savings, therefore, one can assume that they didn't save anything. As the problem requests, parameter ([tex]x[/tex]) will be used for the time, and ([tex]y[/tex]) for the savings.

Steve's saving would be equal to his initial value, minus his expense, in essence;

[tex]250 - 20x=y[/tex]

The initial value, minus the amount spend per week multiplied by the week number will equal the savings left.

Answer:

y=250-(20x)

Step-by-step explanation:

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:

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:

DE/DF, D

Step-by-step explanation:

no explanation, it's a law

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:

10

Step-by-step explanation:

you divide 5 and 50

Answer:

Neither

Step-by-step explanation:

They are the same amount

Answer:

160/3π

Step-by-step explanation:

π ·r² · h/3

π · 4² · 10/3

π · 16 · 10/3

= 160/3 π

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:

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