Wallpaper costs $16 per roll, and border costs $9 per roll. If 12 rolls of wallpaper
and 6 rolls of border are needed for one room, find the total cost of the
wallpaper and border.

Answer: C. There are four groups of three tens and six ones

Step-by-step explanation:

From the options,

A. Three groups each have three tens and 4 ones.

Three tens and 4 ones equal: = (3 × 10) + (4 × 1) = 30 + 4 = 34

Therefore, 34 ÷ 3 is incorrect.

B. There are three groups of five tens and 9 ones in each group.

Five tens and 9 ones will be equal to:

= (5 × 10) + (9 × 1)

= 50 + 9 = 59

Therefore, 59 ÷ 3 is incorrect

C. There are four groups of three tens and six ones.

Three tens and six ones equal:

= (3 × 10) + (6 × 1)

= 30 + 6 = 36

Therefore, 36 ÷ 4 is correct

D. There are three groups of five tens and nine ones in each group.

Five tens and nine ones will be equal to:

= (5 × 10) + (9 × 1)

= 50 + 9 = 59

Therefore, 59 ÷ 3 is incorrect

Therefore, the correct option is C.

Answer:

7 and 10

I hope this is correct and helps.

Answer:

7 and 10 because

perimeter you add all sides together like :

7 +7 +10 +10

14+20

34 (which checks out)

and then for area you multiply length and width and 7 x 10= 70 which checks out

Step-by-step explanation:

First, find the discount by finding 10% of $14.58. To do this, convert 0% into a decimal and multiply by $14.58.

14.58 x 0.1 = 1.458.

Since this a sale price, how much he is getting off, subtract from the total.

14.58 - 1.458 = 13.122.

We still have to find the sales tax. Solving is similar to finding the discount.

13.122 x 0.0825 = 1.082565.

Now, since it is a tax, add to the total.

13.122 + 1.082565 = 14.204565

Round to the nearest hundredth, and you have $14.20.

The sale price with after tax is $14.20.

Answer:

the answer is c

Step-by-step explanation:

Answer:

it would be D

Step-by-step explanation:

all other choices have a repeating x value.

The slope of lien is 3/4

The slope of a line is defined as the change in y coordinate with respect to the change in x coordinate of that line. The net change in y coordinate is Δy, while the net change in the x coordinate is Δx. So the change in y coordinate with respect to the change in x coordinate can be written as

m = Δy/Δx

where, m is the slope

Note that tan θ = Δy/Δx

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane. Calculating the slope of a line is similar to finding the slope between two different points. In general, to find the slope of a line, we need to have the values of any two different coordinates on the line.

According to given graph,

Take the co-ordinate (1, 6) and (5, 9)

slope= 9- 6/ 5-1

m=  3/4

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Answer:

one circle has a total angle of 360. Hence, 360-101= 3x+2+x-35

259=4x-33

292=4x

x=73 degrees

Answer:

y=-1x+4

Step-by-step explanation:

I believe it's negative thirty six or -36

2x + 6 = 10 is an example of Algebraic Equation

Answer:

D is the answer for the question

Answer:

ur ans is B) 96mm

Step-by-step explanation:

If it's ok...PLZ mark it as brainliest

Answer:

The cost of one hamburger is $2.50

The cost of the soda will be $1.00

Step-by-step explanation:

Let the cost of one soda be s

and let the cost of one hamburger be h

Part 1) 2 sodas and 4 hamburgers cost $12.00

2s + 4h = 12

2 (s + 2h) = 12

Dividing the whole equation by 2, we get

s + 2h = 6

s = 6 - 2h (part 1)

Part 2) 4 sodas and 2 hamburgers costs $9.00

4s + 2h = 9 (part 2)

Substituting the value of s from part 1 in part 2, we get

4(6 - 2h) + 2h= 9

24 - 8h + 2h = 9

24 - 6h = 9

-6h = 9 - 24

-6h = -15

h = -15/-6

h = 2.5

So, the cost of one hamburger is $2.50

s = 6 - (2 * 2.50)

s = 6 - 5 = 1

the cost of the soda will be $1.00

Answer:

3 cupcakes

Step-by-step explanation:

to figure it out you could've done 15*0.20

use that equation for future percentage problems

amount x percentage in the form of a decimal

Answer:

Both groups need more boats

1.) 5x=36

36/5

=7.2 boats

2.) 7.2 but you can't split a boats nor can you decrease the amount of people so 8 boats.

3.)4x=24

24/4

=6 boats

I hope this helps u :)

Answer:

D.1

Step-by-step explanation:

It's the only line with a curve.

Answer:

18

Step-by-step explanation:

Solve the separate part of the equation first

6(4) 6(-2) would equal 24-12

Add it back in to get: 10 - 4 + 24 - 12

-4-12 and 10+24 are the like terms so

10+24 = 34 and -4-12 = -16

Equation in the end: 34-16

Simplify that to: 34-16 = 18

Answer: 18

Step-by-step explanation: do ten minus four plus six and get twelve then dont subtract four from two add  and you get 6 add that two gether and get eighteen

Answer:

The required equation in factored form is: [tex]\mathbf{y=-4(x+2)(x-1)}[/tex]

Step-by-step explanation:

In this question we need to find the equation of the graph in factored form.

The factored form will be: [tex]f(x)=a(x-r_1)(x-r_2)..[/tex]

where a is y-intercept and r₁, r₂ are x-intercepts

X-intercepts

When y=0, the values of x axis are known as x-intercepts

Y-intercepts

When x=0, the values of y-axis are known as y-intercepts.

Looking at the graph finding x-intercepts

When y=0 x=-2 and 1

So, we have

r₁ = -2

r₂ = 1

Looking at the graph finding y-intercepts

When x=0, y=-4

So, a = -4

Putting values in the formula we will get:

[tex]f(x)=a(x-r_1)(x-r_2)\\f(x)=-4(x-(-2))(x-1)\\f(x)=-4(x+2)(x-1)[/tex]

So, the required equation in factored form is: [tex]\mathbf{y=-4(x+2)(x-1)}[/tex]

Answer:

y= -1/2x

Step-by-step explanation:

y-y1/x-x1=y2-y1/x2-x1

y-1/x+2=-1/2

2y-2= -x-2

2y= -x-2+2

2y=-x

y=-1x/2„

Answer:

y= -1/2x

Step-by-step explanation:

i took a test on k12 and it was right

Answer:

1 and a half  grains

Step-by-step explanation:

(3x + 4)²

(3x)² + 2(3x)(4) + (4)²

9x² + 24x + 16

Answer:

11/32 of a pound

Step-by-step explanation:

2 3/4 is a mixed number turn it into a fraction

11/4

[tex]\frac{11}{4} \\[/tex]÷[tex]\frac{8}{1}[/tex]

[tex]\frac{11}{4}[/tex]·[tex]\frac{1}{8}[/tex]

[tex]\frac{11}{32}[/tex]

Answer:

{y,x} = {7,-1}

Step-by-step explanation:

(-7x) + 3x = 4

- 4x = 4

 4x = - 4

x = - 1

   y = -7x

   x = -1

   y = -7(-1) = 7

The x values get larger when you move (x, y) to right side. Therefore, option A is the correct answer.

A translation in math moves a shape left or right and/or up or down. The translated shapes look exactly the same size as the original shape, and hence the shapes are congruent to each other. They just have been shifted in one or more directions.

Here,

Translation rules:

When the shape is moved towards the right by k units, then replace x with x + k.

When you move the ordered pair (x, y) to right, x value gets increased.

Therefore, option A is the correct answer.

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Answer:

Step-by-step explanation:

ax + by = c

ax= c-by <------- Subtract by "by"

x= c-by/a <------ divide by a

Answer:

6.7

Step-by-step explanation:

20.5-8=12.5 so

14.7-8=6.7

Answer:

8/11

Step-by-step explanation:

i just did 8 divided by 11 and got that

Answer:

0.72

Step-by-step explanation:

8/11  0.72727272727