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4 years ago

How do you write a proportion? i forgot lol...

Mathematics

1 answer:

damaskus [11]4 years ago

3 0

You write an equation having 2 fractions on either side

It would look like this general template

A/B = C/D

So for your example

A = number of pages in case 1

B = number of minutes in case 1

C = number of pages in case 2

D = number of minutes in case 2

Meaning that..

A = 6

B = 2

C = x

D = 5

Leading to this equation

6/2 = x/5

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Team Green and Team Blue play in a competition. Team Green has twelve more points than Team Blue.

valentinak56 [21]

Answer:

Team blue points = 4 points

Team green points = 16 points

Step-by-step explanation:

Let

Team blue points = x

Team green points = (x + 12) points (1)

Team green points = 4x (2)

Equate equation (1) and (2)

x + 12 = 4x

12 = 4x - x

12 = 3x

x = 12/3

x = 4 points

Team blue points = x

= 4 points

Team green points = (x + 12)

= 4 + 12

= 16 points

Team green points = 4x

= 4(4)

= 16 points

4 0

3 years ago

249 divide by 22 subtract by 60

Vinil7 [7]

Answer:

-48.6818182

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

2x-3(x-4y)+1/2(8x-12y)

antoniya [11.8K]

The answer I came up with: 3x-18y

3 0

3 years ago

If you know the answer please help me!!!

DanielleElmas [232]

That the panda approximately is about 35 months old, and is approximately weighs 82 kilograms

5 0

3 years ago

A painter can paint a building in 15 days and a coworker can do the same job in 10 days. If the first painter starts and 3 days

Sonja [21]

Answer: 7.8 days

<u>Step-by-step explanation:</u>

Painter can get the job done in 15 days so gets $\dfrac{1}{15}$ of the job done in 1 day.

Coworker can get the job done in 10 days so gets $\dfrac{1}{10}$ of the job done in 1 day.

Together, they get $\dfrac{1}{15}+\dfrac{1}{10}$ of the job done in 1 day.

Painter worked for 3 days so completed $\dfrac{1}{15}(3)=\dfrac{1}{5}$ of the job.

That leaves a remaining of $1-\dfrac{1}{5}=\dfrac{4}{5}$ of the job to be completed.

Let x represent the number of days it will take them to work together.

Painter + Coworker = Together

$\dfrac{1}{15}(x)\quad +\quad \dfrac{1}{10}(x)\quad =\quad \dfrac{4}{5}$

Multiply by 30 to eliminate the denominator:

$\dfrac{1}{15}(x)(30) +\ \dfrac{1}{10}(x)(30) = \dfrac{4}{5}(30)$

Simplify and solve for x:

2x + 3x = 24

5x = 24

$x=\dfrac{24}{5}$

x = 4.8

Remember that Painter worked 3 days alone in addition to the 4.8 days they worked together.

So the total time to paint the building is 3 + 4.8 = 7.8

7 0

4 years ago