Lila wrote an equation of the cost for printing brochures, where x represents the number of brochures and y represents the total cost. The total cost for 35 brochures is $41.45. The total cost for 65 brochures is $55.55.

Step 1: Write the ordered pairs (35, 41.45) and (65, 55.55).

Step 2: Find the slope. m = StartFraction 55.55 minus 41.45 Over 65 minus 35 EndFraction = 0.47

Step 3: Find the y-intercept to write the equation in slope intercept form. y minus 55.55 = 0.47 (x minus 35). Y minus 55.55 = 0.47 x minus 16.45. y = 0.47 x + 39.1.

Which explains the error that Lila made?
A. Lila made in error in Step 1 by reversing the ordered pairs.
b.Lila made an error in Step 2 by not using the slope formula.
c.Lila made an error in Step 3 when she did not use the x- and y-coordinates from the same ordered pair.
d.Lila made an error in Step 3 when she did not use the distributive property correctly when multiplying.


since its hard first answer = brainliest

Answer:

B. PK = 15, RJ = 9

Step-by-step explanation:

RQ = 3

PQ = 5

✔️In ∆JKL, Q is the centroid. According to the centroid theorem, thus:

⅓(RJ) = RQ

⅓(RJ) = 3

Multiply both sides by 3

RJ = 3*3

RJ = 9

✔️Also, based on the centroid theorem,

⅓(PK) = PQ

⅓(PK) = 5

Multiply both sides by 3

PK = 5*3

PK = 15

100

50 is half of 100 and 50% is half.

Answer:

113

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

f(x) = 5ˣ - 12

f(3) is x = 3

Step 2: Evaluate

Answer:

16.5

Step-by-step explanation:

Answer:

33/2

Step-by-step explanation:

Answer:

Below.

Step-by-step explanation:

This transformation is described by (x,y)---> (y,x).

G(4,1) ---> G'(1,4)

H(5,-4) ---> H'(-4,5)

I(2, -8) ----> I'(-8,2).

Answer:

18 units

Step-by-step explanation:

Using the midpoint theorem, the perimeter of the triangle formed by joining the midpoints of the original triangle is exactly half the size in perimeter

What we mean in this case is that the perimeter of BAC IS two times the perimeter of EDF

perimeter of EDF is the sum of all the sides = 2 + 4 + 3 = 9

So the perimeter of BAC is 2 * 9 = 18

Answer:

8

Step-by-step explanation:

2/3 x 12 = 8

Answer:

the answer was 8 it was on my mid-term

Step-by-step explanation:

Answer:

Ans is y so find y by using formula for isoceles triangle that is 2 right triangles

Answer:

Y = 4X - 6

Step-by-step explanation:

Slope of linear equation = change in Y / change in X

As Y is changing +4 units, with change in X +1 units.  [ -6 - (-2) ] / [ 1 - 0 ]

So, slope = 4

Y = A + BX

Y = A + 4X  , as B = slope & A = intercept

Putting values of X & Y (0,-6)

-6 = A + 4 (0)

A = -6

Hence, Equation : Y = 4X - 6

Answer:

m= 8/11

Step-by-step explanation:

plug into the formula and solve

Answer:

a. x= 5

b. x=9

Step-by-step explanation:

a.

2x=10

10/2=5

x=5

b. 3x=27

27/3=9

x=9

Please mark me brainliest

:)

Answer:

a) x=5

b) x=9

Step-by-step explanation:

a) 2x=10

x=10/2

x=5

b)3x=27

x=27/3

x=9

Answer:

2. Substitution property

3. Given

4. Definition of congruent angles

5. Substitution property

6. Subtraction property of equality

7. Definition of congruent angles

8. Given

9. Definition of equilateral triangle

11. SAS (10, 7, 9)

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

Answer:756

Step-by-step explanation:

the formula of the four walls is 2(lh+bh)

so that would be: 2(12*14+15*14)=756

Answer:

$160

Step-by-step explanation:

Diane sold some stuffs at a garage sale.

Let the total value of the money Diane made = x

She spent one-half of the money she made on a new bicycle.

Amount spent on a Bicycle = 1/2 × x = 1/2x

Next,

Amount left

= x - 1/2x = 1/2x

She spent one-half of what was left on a portable stereo.

Amount spent spent on Portable stereo

= 1/2 × 1/2x

= 1/4x

If Diane had $40.00 left,

Hence:

The fraction of what was left is calculated as:

= x - (1/2x + 1/4x)

= x - (3/4x)

= 1/4x

Hence:

1/4x = $40

We can find the value of x now.

1/4 × x = $40

x/4 = $40

x = $40 × 4

x = $160

Therefore, the amount she made from the garage sale is $160

Answer:

Hey hey guys, it is 160.00

Step-by-step explanation:

Answer:

500

Step-by-step explanation:

Answer:

c. she makes a multiplication error.

Step-by-step explanation:

edge:) 2020

Answer:

she makes a multiplication error

Step-by-step explanation:

took the test

Answer:

The answer is 13.5 cups

Step-by-step explanation: One bach requires 1.5 cups so if she is making 9 or those she will have to 1.5 cups 9 times.

Answer: 13.50

Step-by-step explanation:

Sara needs 1.5*9=13.5 cups of flour

Answer:

A

Step-by-step explanation:

The graph stops at the point (-1,-3) so

The domain (x) would have to be greater than or equal to -1

The range (y) would be greater than or equal to -3

Answer:

wheres the question

Step-by-step explanation:

Answer:

option A)  y > 5/4x + 10

Step-by-step explanation:

Take any point in the shaded region

( -12 , 1)

y > 5/4 x + 10

1 > 5/4 * (-12) + 10

1 > 5*(-3) +10

1 > -15 + 10

1 > -5

(-12 , 5) satisfies the equation.

Answer:

the distance is 14 on the number line

The distance between -24 and 9 is; 33.

While determining the distance between two points on the number line;

The absolute value of their difference is considered the distance between the two points.

In this case; the difference is;

However, the absolute value of -33 is; 33.

Read more:

https://brainly.com/question/17555743

Answer:

Step-by-step explanation:

here you go mate

step 1

-2x+3y-9-5y+2-4x  equation

step 2

-2x+3y-9-5y+2-4x  expand

-2x+3y+-9+-5y+2+-4x  

step 3

-2x+3y+-9+-5y+2+-4x  combine like terms

answer

-6x-2y-7

can i have brainliest if you dont mind?

To write in slope-intercept form, you first need to get y by itself. To do this, subtract 7x from both sides of the equation.

Doing this gets you: y = 25 - 7x

Now that y is by itself, remember that slope-intercept form looks like this: y = mx + b

So, let's switch the right side.

y = -7x + 25

Slope intercept form is: y = -7x + 25

Rules for y in Slope-Intercept form:

y must be positive

y must be by itself (so, not 2y, or anything with it... just y)

Answer:

19w-1

Step-by-step explanation:

5(2.4w+1)+(7w-6)

12w+5+7w-6

19w-1

Final Answer: [tex]19w - 1[/tex]

Steps/Reasons/Explanation:

Question: Simplify [tex]5(2.4w + 1) + (7w - 6)[/tex].

Step 1: Remove parentheses.

[tex]5 (2.4w + 1) + 7w - 6[/tex]

Step 2: Expand by distributing terms.

[tex]12w + 5 + 7w - 6[/tex]

Step 3: Collect like terms.

[tex](12w + 7w) + (5 - 6)[/tex]

Step 4: Simplify.

[tex]19w - 1[/tex]

~I hope I helped you :)~

Answer:

[tex]8x - y = - 11[/tex]

Step-by-step explanation:

write in standard form:

[tex]ax + by = c[/tex]

Write Standard Form:

Solution:

Final Answer:

#CarryOnLearning

Answer:

The inequality correctly matches the graph is -2 < x < 4 ⇒ B

Step-by-step explanation:

From the given figure

∵ There is a segment drawn from -2 to 4

∴ The starting point of the inequality is -2

∴ The ending point of the inequality is 4

∵ The endpoints of the segments are white circles (not shaded)

→ That means the signs of inequality without sign =

∴ The values of x are between -2 and 4

∴ The inequality is -2 < x < 4

∴ The inequality correctly matches the graph is -2 < x < 4