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Wewaii [24]
3 years ago
12

Proportions- Determine if each pair of ratios forms a proportion. Show all work!

Mathematics
2 answers:
KATRIN_1 [288]3 years ago
8 0

Answer:

B

Step-by-step explanation:

MakcuM [25]3 years ago
4 0

<u>Answer</u>

Yes they form a proportion.


<u>Explanation</u>

Ratio is a division. For the two ratios to be proportional, then they must be the same after been simplified to their simplest form.

So in this case we have to ask ourselves whether 30/12 = 80/32.

30/12 = 2.5

30/12 = 15/6 = 5/2

80/32 = 2.5

80/32 = 40/16 = 20/8 = 10/4 = 5/2

The two ratios are the same, so we can say that the ratios are proportional.

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Line AB passes through A(-3, 0) and B(-6, 5). What is the equation of the line that passes through the origin and is parallel to
Lera25 [3.4K]

Answer:

3y+5x=0

Step-by-step explanation:

The question is on equations of parallel lines

Finding the gradient m of line AB

m=change in y coordinates/change in x-co-ordinates

Given points A(-3,0) and B (-6,5)

m=Δy/Δx  Δy=5-0=5      Δx=-6 - -3= -3  ⇒m= - 5/3

Equation

The line will have its gradient equal to - 5/3

m=-5/3  

point is the origin (0,0)

m=Δy/Δx

y-0/x-0 = -5/3

3(y-0)=-5(x-0)

3y-0= -5x+0

3y=-5x

3y+5x=0

6 0
3 years ago
HELP QUICK!!! :O WILL BRAINLIEST
Marianna [84]
A. you have to do the whole 30/2  i just had this on a test. GOOD LUCK 
6 0
3 years ago
Read 2 more answers
Brenda needs to solve the system of linear equations below for her homework assignment. y = 9x – 70 y = 2x – 32 Which is a reaso
Dennis_Churaev [7]

Answer:

C (5, -22) is the answer

6 0
3 years ago
What is the distance around the perimeter of the garden? 60 ft 60 startroot 3 endroot ft 120 ft 120 startroot 3 endroot ft
Mnenie [13.5K]

The distance around the perimeter would be 120 ft.

<h3 /><h3>What is perimeter?</h3>

Perimeter is the distance around the edge of a shape.

The complete question is

A garden is designed in the shape of a rhombus formed from 4 identical 30°-60°-90° triangles. The shorter distance across the middle of the garden measures 30 feet.

A rhombus is shown. Lines are drawn from each point to the opposite point to form 4 right triangles. The other 2 angle measures are 30 and 60 degrees. The base length of each triangle is 15 feet.

What is the distance around the perimeter of the garden?

let AE is the half of the diagonal AC.

AC = 30 ft.

So, AE = ½ * 30

AE = 15 ft

Now, using trigonometry

sin 30 = 15/AD

0.5= 15/AD

AD= 30 ft

Hence, distance around the perimeter would be: AD+AD+AD+AD=

=30 ft + 30 ft + 30 ft + 30 ft

= 120 ft.

Learn more about this concept here:

brainly.com/question/16400817

#SPJ1

5 0
2 years ago
4. Kyle drives his truck 429 miles on 33 gallons of
Westkost [7]

Answer:

13

Step-by-step explanation:

429 divided by 33 =13

3 0
3 years ago
Read 2 more answers
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