Explain, in your own words, the steps necessary to solve a system of equations
using the substitution method.

Answer:

probaly 2

Step-by-step explanation:

you have to figure out the slope.

y1 - y2/x1-x2

Answer:

3

Step-by-step explanation:

The scale factor of the dilation is 3

Answer:

Step-by-step explanation:

(0, -5) (5, 0)

(0 + 5)/(5 - 0)

5/5= 1

y + 5 = x - 0

y = x - 5

Answer:

y =9

Step-by-step explanation:

you know the distance is 10 and some of the x,y points. so start filling what you know into the distance formula

10= √((9-1)^2 + (y-3)^2 )

square both sides to get ride of the square root

100 = 64 + (y-3)^2

36 = (y-3)^2

6 = y-3

y = 9

double check by using 9 for Y and you'll see it works.

Answer:

all of them are correct

Step-by-step explanation:

Answer:

look at the picture i sent plz......

Answer:

Number of non defective bulbs-

400-24

376

Our fraction would be-

376/400

To make it into percentage we need to always multiply it by 100

376/400 x 100

=94%

Thus 94% of the bulbs are non defective

Answer:

(-4,4)

Step-by-step explanation:

I believe that's it

Answer:

11.14

Step-by-step explanation:

Mean = sum of numbers / total numbers

the mean of the 7 numbers = sum of the numbers / 7

sum of numbers for the 3 numbers = 10 x 3 = 30

Sum of numbers for the other 4 numbers = 12 x 4 = 48

Sum of the 7 numbers = 48 + 30 = 78

Mean of the 7 numbers = 78 / 7 =  11.14

Answer:

Look at the description:

Step-by-step explanation:

The mistake is that they did not need to divide the radius by two since the radius is already half of the diameter. The area of a circle is pi*r^2. The second mistake they made was that they assigned pi the value of 3 which is wrong. After calculating, the area of the circle is 53^2pi = 8824.73mm^2

Answer:

a

Step-by-step explanation:

Answer:

65% profit

-25% discount

Step-by-step explanation:

cost price = 40+25 = 65% higher than marked price

discount = -25%

Answer:

x = 17

Step-by-step explanation:

Assuming you require to find x

4x - 3 and 115 are same- side interior angles and supplementary, sum to 180°

4x - 3 + 115 = 180

4x + 112 = 180 ( subtract 112 from both sides )

4x = 68 ( divide both sides by 4 )

x = 17

Answer:

The slope is 1/3

Step-by-step explanation:

Equation for slope is rise over run or y2-y1/x2-x1

-5,1 -2,2 these are the 2 points, so it could be 2-1/-2--5 which is equal to 1/3.

Traders have invested $ 100,000 in the Peace Garden Center to boost the capital Mogadishu and make a profit. looga farm income to make people come to the door to take the free tickets for different values $ 0.8 adults and 0.6 children. As many as 150 tickets were sold on Friday for $ 102. produce more child tickets than adult tickets?

9514 1404 393

Answer:

Step-by-step explanation:

The shaded area contains area A and two of area B. The expression for that area can be written ...

  Area of trapezoid = A + 2×B

__

The overall rectangle has an area of D. The areas labeled C can be subtracted from that to leave the shaded area. The expression for that is ...

  Area of trapezoid = D - 2×C

Answer:

4/9

Step-by-step explanation:

(2/3)^2 is another way of writing:

2/3*2/3

Which is 4/9

Hope this helps

Answer:

2/3*2/3      4/3

Step-by-step explanation:

Answer:

Solve the rational equation by combining expressions and isolating the variable.

x=47.04630109.

Step-by-step explanation:

Answer:

james get 2 thirds

Step-by-step explanation:

Answer:

Step-by-step explanation:

If the angles of a triangle are 45°, 45° and 90°, the the sides of the triangle are x. x and x√2

x√2 = 19√2   ⇔  x = 19

Answer:

she didnt multiply 5 times 12

Answer:

The whole slices of the cakes of Luke, Kira and Ali are 6, 9 and 12 respectively. So it is possible.

Step-by-step explanation:

It's possible because they cut cakes into different number of slices.

You know that Luke, Kira and Ali each served [tex]\frac{2}{3}[/tex] of their own cake and Luke served 4 slices, Kira served 6 slices and Ali served 8 slices.

Being x the whole slices of cake, and if Luke served [tex]\frac{2}{3}[/tex] of his cake, which are 4 slices, the whole slices of cake of Luke is:

[tex]\frac{2}{3}*x=4 slices[/tex]

Solving:

x= 4 ÷[tex]\frac{2}{3}[/tex]

x= 6

Then, whole slices of Luke's cake is 6.

Performing the same approach for Kira you get:

[tex]\frac{2}{3}*x=6 slices[/tex]

x= 6 ÷[tex]\frac{2}{3}[/tex]

x= 9

Then, whole slices of Kira's cake is 9.

Finally, performing the same approach for Ali you get:

[tex]\frac{2}{3}*x=8 slices[/tex]

x= 8 ÷[tex]\frac{2}{3}[/tex]

x= 12

Then, whole slices of Ali's cake is 12.

The whole slices of the cakes of Luke, Kira and Ali are 6, 9 and 12 respectively. So it is possible.

Answer:

6

Step-by-step explanation:

since it's a right triangle you can use the Pythagorean Theorem

2.7² + b² = 6.5²

7.29 + b² = 42.25

b² = 34.96

b = [tex]\sqrt{34.96}[/tex] which equals 6 when rounded to the nearest tenth

Answer:

26

Step-by-step explanation:

100 +(24^2) = 676

square root of 676 = 26

Answer:

either 26 m or 21.8174 m

Step-by-step explanation:

If 24 is the hypotenuse, then 24^2-10^2=x^2

x^2=576-100=476

x=21.8174 m

if x=hypotenuse, then 24^2+10^2=x^2

x^2=576+100=676

x=26 m

Answer:

5

Step-by-step explanation:

The number of cubes that should be on each side of the frame should be considered as the 5.

Since Sally used 8 cubes to make this square frame that has 3 cubes on each side.

So here the no of the cube be like

= 8  - 3

= 5

hence, The number of cubes that should be on each side of the frame should be considered as the 5.

Learn more about cube here: https://brainly.com/question/3510925

Answer:

d = 9

Step-by-step explanation:

solving for d

let's get ride of the fraction first so multiple the whole thing by 3

3= 1d - 6

add 6 to both sides

9 = d

easy peasy.

Answer:

Distributive Property

Step-by-step explanation:

We have

5(3x - 6/7)

Distributive Property would work because 5 has to be mutliplied by 3x and -6/7 to rid the parenthesis and also give a final answer for the equation. Any others will lead to a wrong answer.

Answer:

Step-by-step explanation:

Volume = 1/2 a * b*h

So

V= 1/2 (9)(6)(21)= 567 us ^3