A Rube Goldberg machine consists of a series of devices that perform a simple task. Kate is drawing a scale model of her Rube Goldberg machine, which she plans to build and enter into a contest. A bicycle wheel on the scale model is 2 inches in diameter, while in the actual machine, it will be 28 inches in diameter. (PART B) what would be the actual length of a rope that is 7.25 inches long in the model) i need help with (part b) pls help

Answer:

[tex]- \frac{3}{8}[/tex]

Step-by-step explanation:

Use the slope formula:

slope [tex](m) = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Let:

[tex](x_1 , y_1) = (1 , 11)\\(x_2 , y_2) = (9 , 8)[/tex]

Plug in the corresponding numbers to the corresponding variables:

[tex](m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{8 - 11}{9 - 1}[/tex]

Simplify by subtracting:

[tex](m) = \frac{8 - 11}{9 - 1} = - \frac{3}{8}[/tex]

[tex]-\frac{3}{8}[/tex] is your answer.

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Answer:     D. 1 3/5

Step-by-step explanation

2/5=0.4

4x0.4=1.6

1.6=1 3/5

Answer:

question 2 is A; 15%

Step-by-step explanation:

the change in price is $18; 18 is 15% of 120

The old fare of a Airlines ticket from New Orleans to Boston is  18333 cents. and the change in price is 15% of 120

Let the old price of the ticket = $100

Price is increased by 30%

We can write it as;

New price = $100+ $ 30

New price = $130

We know that 30%  = $550

then 100% = $550 × 100 / 30

So the old fare = $550,00 / 30

                        =$ 1833.3

1 dollars = 100 cents

$ 1833.3 = 18333 cents

Hence , the old fare of a Airlines ticket from New Orleans to Boston is  18333 cents.

Then the change in price is 15% of 120

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Answer:

2 * (4^2 + squared root of 36) - 13

since the space where the _ are, that's where the parenthyeses would be placed. If you place these around 2, you get 25, is around 4^2, it's also 25, if placed around square root of 36, it will also be 25, but if placed around -13, it's -46. But place then around 4^2 + the square root of 36, then you will get your answer of 31 simplified.

Answer:

1/2

Step-by-step explanation:

Answer:

middle option: 2(f + 5)

Step-by-step explanation:

The distributive property states that:

A(B + C) = AB + AC

Therefore,

2f + 10

= 2f + 2(5)

= 2(f + 5)

Answer: 2(f+10)

Step-by-step explanation:

Answer:

slope = [tex]\frac{3}{4}[/tex]

Step-by-step explanation:

the formula is straightforward which is [tex]\frac{y_{2} -y_{1} }{x_{2}-x_{1} }[/tex]

pick two coordinates that have a clear x and y point

then make one of the coordinates [tex]x_{1}[/tex] and [tex]y_{1\\}[/tex] and then make the other [tex]x_{2\\}[/tex] and  [tex]y_{2\\}[/tex]

once you've done that plug them into the equation and boom you have your answer

Answer:

I added the whole thing

Answer:

Let x be no. of movies watched.

PART A: 10 + 1x

PART B: 15+0.5x

10+1x=15+.50x

10+1x-(15+.50x) =0

1x-(.50x+15) +10=0

x-(.50x+15) +10=0

x-.50x-15+10=0

0.5x-5=0

0.5x=5

x=5/0.5

x=10

Answer:

Step-by-step explanation:

I DONT NO THE SAID Shade the models at the right to show how the  value of 0.04 is related to the value of 0.4.  Then write a division equation to  represent the relationship.

Answer:

The answer is B and C.  

Step-by-step explanation:

The pairs (2, 2), (4, 4), and (6, 6) have ratios of 1 and the pairs (4, 1), (4, 1),  (8, 2), and (12, 3) have ratios of 4. The other pairs do not have similar ratios.

Answer:

(2, 2), (4, 4), (6, 6)

(4, 1), (8, 2), (12, 3)

Step-by-step explanation:

These are the only two where the ratios are the same for each ordered pair

If you plot them you will get a straight line with non-zero slope

The others do not show this characteristic

First one has ratios
2/1, 3/2 and 7/4 not same

Third one has ratios

1/3, 1/4, 1/5

Last one has ratios

1/2, 3/4 and 4/5

Hope that helps

Answer:

Step-by-step explanation:

try 40 inches long and 24 inches wide

explanation is 5 x 2 = 10  10 x 2 = 20  20 x 2= 40.

and 3 x 2 = 6  6 x 2 = 12  12 x 2 = 24

Answer:

For each gallon of of water the washing machine uses, it runs for three-fifths of a minute

Step-by-step explanation:

Answer:2

Step-by-step explanation: 20/10=2/1=2

Answer:

59.5 hours

Step-by-step explanation:

Since Fabiola has basketball practice for 4.25 hours each week and we need to find how much she practices for 14 weeks, you have to multiply.

4.25 x 14 = 59.5

Answer:

Slope= 2

Step-by-step explanation:

Point 1: (4,2)

Point 2: (5,4)

4-2=2

5-4=1

Answer: 2

Answer:

Slope is 2

Step-by-step explanation:

[tex](y2-y1)/(x2-x1)\\(4-0)/(5-3) = 4/2 = 2[/tex]

Answer:greater than

Step-by-step explanation:

50/1 is greater than 45/ 3/4

Answer: 15<1.99x

You want to find when fifteen is less than 1.99 per movie. we can say that each movie is some value x. if we change the wording in the first sentence to math, we literally get 15<1.99x.

Answer:

What are the examples I can't answer this without them

Step-by-step explanation:

question means make it look like

y = ...

Answer:

y=5/4x+2 or y=(5x-8)/-4

Step-by-step explanation:

question means make it look like

y = ...

-5x-4y=-8

-4y=+5x-8

y=(+5x-8)/-4

y=5/4x+2

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Answer: 1/15

Step-by-step explanation:

75 divided by 5 is 15.

Answer:

1/15

Step-by-step explanation:

if you multipy 15 times 5 you get 75 hope this helps

Answer:

12.5 weeks

Step-by-step explanation:

Let's make a equation: 175=200-2x

rearrange it: -2x+200=175

subtract 200 from both sides

-25=-2x

divide both sides by -2

x=25/2

25/2=12.5

Answer:

12.5

Step-by-step explanation:

he wants to weigh 175lbs so he wants to lose 25 pounds,

25/2 = 12.5

Answer:

Elias sold one-fourth the number of books Lena sold .

Step-by-step explanation:

(Not sure)

Answer:

I'm pretty sure it's the 2nd option

Answer:

7.1428%

HOPE THIS HELPS

Step-by-step explanation:

The computation of the total amount of water needed could be determined by using the volume formula which is shown below:

where

L = length,

W = width,

and D = depth.

Now putting the values to the above formula

Therefore, the total amount of water needed is

We simply applied the above formula

Answer:

2

Step-by-step explanation:

1,3, and 4 are all eliminated because they are all false. 2 is the only reasonable answer.

Answer:

B  & A

Step-by-step explanation:

Elm and Cathedral are the same but flipped

The least of Cathedral is one while the greatest of Elm is 4