DB is a perpendicular bisector of ADC.
AC = 2x + 20 BC = 4x-2 Solve for x.
Find BC and AC.

Answer:

85 = 15 + d

d = 70

Step-by-step explanation:

Cost of a skateboard = $85

Zach savings = $15

Amount needed more to save = $d

Which equation represents the amount of money Zach still needs to buy the skateboard?

Total cost = available savings + more savings

85 = 15 + d

85 - 15 = d

70 = d

d = 70

Answer:

.

Step-by-step explanation:

.

Answer:

i belive its x^2 + y^2 = 8

Step-by-step explanation:

3 times

Step-by-step explanation:

Answer:

40% = 0.40

800 / 0.40 = 2000 total tickets were sold

Step-by-step explanation:

Answer:

4 1/2

Step-by-step explanation:

The origional question is ¨A turtle travels 1/2 mile in 1/9 hour. At this rate, how far can the turtle travel in an hour¨ To be honest i have no clue how to explain it but that is the awanser.

The turtle will travel  [tex]4\frac{1}{2}[/tex] in an hour.

A proportion is an equation in which two ratios are set equal to each other.

Given that, a turtle travels 1/2 mile in 1/9 hour. we need to find, at this rate, how far can the turtle travel in an hour.

We will solve this by using proportionality, since, rate is constant,

Let the turtle travels x miles in an hour,

Therefore,

x / 1 = (1/2) / (1/9)

x = 1/2 × 9

x = 9/2

x = [tex]4\frac{1}{2}[/tex]

Hence, the turtle will travel  [tex]4\frac{1}{2}[/tex] in an hour.

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Answer:

The speed with which Baba Yaga flies in quiet weather (with no tailwind or headwind) is approximately 2.9 km/h

Step-by-step explanation:

In the question, we have;

The speed of the tailwind = 2 km/h

The time it takes Baba Yaga to the Bald Mountain = 6 hours

The location where Baba Yaga finds her broom = 40 km before Bald Mountain

The duration of the entire journey = 9 hours

Let 'v' represent the speed with which Baba Yaga flies in quiet weather (with no tailwind or headwind), we get;

(v + 2) × t = (v - 2) × (t - 9)

v·t + 2·t = v·t - 9·v - 2·t + 18

2·t = 18 - 9·v - 2·t

4·t = 18 - 9·v

t = 4.5 - 2.25·v

(v + 2) × 6 = (v - 2) × (t - 9) + 40

6·v + 12 = (v - 2) × (4.5 - 2.25·v - 9) + 40

6·v + 12 = (v - 2) × (-2.25·v - 4.5) + 40

With a graphing calculator, we have;

6·v + 12 + 2.5·v² - 0.5·v - 9 - 40 = 0

5·v² + 11·v - 74 = 0

Using the quadratic formula

v = (-11 ± √(11² - 4·5×(-74)))/(2·5)

v ≈ 2.9, or v ≈ -5.1

Therefore;

The speed with which Baba Yaga flies in quiet weather (with no tailwind or headwind), v ≈ 2.9 km/h

Answer:

B

Step-by-step explanation:

change in y-values is a constant 4.5

change in x-values is a constant 2

4.5/2 = 2.25/1   [this means 2.25 minutes per page]

Answer:

Slope is -3/4 the y-intercept is (0,6)

Step-by-step explanation:

Answer:

Your roots are equal to 16

Answer:

Step-by-step explanation:

Given:

Final amount is:

Answer:

500

Step-by-step explanation:

10x30

Answer:

1,400 crayons because 10 × 20 + 40 × 30 = 1,400

Step-by-step explanation:

you basically just estimate

Answer:

line k:  y = x + 4

line m:  y = -2x + 4

line p:  y = -6

line r:  x = 1

Step-by-step explanation:

The equation for each line considering the graph is line k:  y = x + 4, line m:  y = -2x + 4, line p:  y = -6, line r:  x = 1

An object having an endless length and no width, depth, or curvature is called a line. Since lines can exist in two, three, or higher-dimensional environments, they are one-dimensional things.

Calculate the slopes of the lines as shown below,

[tex]m = y_2 - y_1 / x_2 - x_1[/tex]

For line k, m = 0 - (-4) / -4 -0

m = -1

Thus, the equation of a line having slope -1 and coordinates (0, 4) can be written as,

[tex]y-y_1 = m(x- x_1 )[/tex]

y - 4 = -1(x-0)

y -4 = -x

y = -x + 4

Similarly, write the equation for lines m, p, and r,

line m:  y = -2x + 4

line p:  y = -6

line r:  x = 1

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The value of x in the triangle shown is 68.

A triangle is a polygon that has three sides and three vertices. It is one of the basic figures in geometry.

We are Given triangle is an isoceles 56=56

Thus, the sum of angles of triangle is 180.

X+56+56=180

X=180-112

X=68

Therefore, the value is X is 68.

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Answer:

-5

Step-by-step explanation:

Each time the x value goes up 1, the y value goes down 5.

change in x = 1

change in y = -5

slope = (change in y)/(change in x)

slope = -5

Answer:

-five

Step-by-step explanation:

rise over run

Answer:

Ummm idek       L O LLLLLL

Step-by-step explanation:

for the ball to get to the ground the h=0 no hight it is now in the base point.

substitute the value t=0 into the equation we get 64.

since we want to know the time in seconds then we should subtract 60 from 64 (64-60=4)

then my answer is 0-4.

I'm not sure it's correct just wait for others to respond

Answer:

b

Step-by-step explanation:

let y = f(x) and rearrange making x the subject , that is

y = 4x + 3 (subtract 3 from both sides )

y - 3 = 4x ( divide both sides by 4 )

[tex]\frac{y-3}{4}[/tex] = x

Change y back into terms of x with x = [tex]f^{-1}[/tex] (x) , then

[tex]f^{-1}[/tex] (x) = [tex]\frac{x-3}{4}[/tex] → b

Answer:

c

Step-by-step explanation:

sum of two numbers x and y is 140

x+y=140

the difference between x(the larger number) and y( smaller number)

x-y=32

Answer:

a

Step-by-step explanation:

Answer:

Step 1:divide

276/12=23

Step 2:

answer it!

Step-by-step explanation:

Your answer is 23. Divide the sf by the ft then you get x.

Answer: 23 ft

Step-by-step explanation: If you divide 276 by 12 your answer will be 23 ft.

Answer: station X

Step-by-step explanation:

Because it was 3.08 the rest were lower

Answer:

Answer: station X

Step-by-step explanation: I got it right on the test i know im right.

Answer:

Include the areas of five faces.

The surface area that will be painted is 376 ft2.

Step-by-step explanation:

Answer:

Include the areas of five faces

The surface area that will be painted is 376 ft2.

2 and 4

Answer: See explanation

Step-by-step explanation:

We are informed that Ahmad averaged 12 km/h in the first 2 hours. Total distance for the first 2 hours = 12km × 2 = 24km.

In the next three hours he averaged 8 km/h. The total distance for the next 3 hours = 8km × 3 = 24 km

A) Calculate the total distance covered.

This will be the distance covered for the 5 hours. This will be:

= 24km + 24km

B. Calculate his average speed for the whole journey.

This will be:

= Total distance covered / Total time taken

= 48km / 5

= 9.6 km/hour

Answer:

706.25

Step-by-step explanation:

well i be smart my friend XD

1 + 1 (13 - 1 * 15) + 123 (23 / 4)

1 + 1 * - 2 + 123 x 5.75

1 - 2 + 707.25

-1 + 707.25

706.25

Answer:

Step-by-step explanation:

1 × 1(13 - 1 × 15) + 123 × (23/4) = 1 × 1(13 - 15) + 123 × (23/4)

= 1 × 1(-2) + 123 × (23/4)

= 1 × (-2) + 123 × (23/4)

= 1 × (-2) + 123 × (5.75)

= -2 + 123 × (5.75)

= -2 + 707.25

= 705.25

Answer:

37.5

Step-by-step explanation:

180-75 = 105

180 is the sum of all the angle in a triangle

180-105 = 75

75/2 = x becuz the triangle is icoceles

=37/5

Hope this helps :) Giving me brainiest would help a lot :))

Answer:

112 minutes

Step-by-step explanation:

Suzanne can put up 20 feet of fencing in 64 minutes.

We need to find minutes it will take to put up 35 feet of fencing.

20 feet = 64 minutes

1 feet = (64/20) minutes

For 35 feet,

[tex]35\ feet=\dfrac{64}{20}\times 35\\\\=112\ minutes[/tex]

So, it will take 112 minutes to put up 35 feet of fencing.

Answer: 1

Step-by-step explanation:

The slope of a line perpendicular to x+y=5 is 1

Answer

30

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

y-y1 = m(x-x1)