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QveST [7]
3 years ago
7

Write a real-world problem that could be solved using a proportion

Mathematics
2 answers:
sweet [91]3 years ago
7 0
What proportion of the pie did my mom eat if 1/2 is left? - That's a question you could use. Hope I helped!!!!!
morpeh [17]3 years ago
3 0
All the pollution in the world needs to go
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2895÷229=<br> PLZ RIGHT WITH WHOLE NUMBER AND REMANDER<br> ---<br> R:
Eduardwww [97]

Answer:

12 R 147

Step-by-step explanation:

6 0
2 years ago
I need help please<br><br> I will give points and brainlest
Nastasia [14]

Answer:

  a. 2 7/9 miles

  b. 21.6 minutes

  c. 8 1/3 miles

Step-by-step explanation:

The rate at which Catlin runs can be determined from the graph by finding the coordinates of a grid point that lies on the line. The line goes through the origin, so the relationship between time and distance is proportional.

We see that the point (miles, minutes) = (1 2/3, 12) lies on the graph, so the contant of proportionality is ...

  k = y/x = 12/(5/3) = 36/5 = 7.2 . . . . minutes/mile

__

<h3>a.</h3>

The proportion can be written ...

  distance/(20 minutes) = (1 mile)/(7.2 minutes)

  distance = (20/7.2) miles = 2 7/9 miles

Catlin will run 2 7/9 miles in 20 minutes

__

<h3>b.</h3>

The proportion can be written ...

  time/(3 miles) = (7.2 minutes)/(1 mile)

  time = (3)(7.2 minutes) = 21.6 minutes

Catlin was running 21.6 minutes

__

<h3>c.</h3>

In 1 hour, Catlin will run 3 times as far as in 20 minutes. Using the result from part A, we find ...

  3(2 7/9 miles) = 8 1/3 miles 8 1/3 miles

Catlin will run 8 1/3 miles in one hour.

_____

<em>Additional comment</em>

Once we have a relationship between minutes and miles, we can write proportions with either of those numbers in the numerator or denominator. We find it convenient to put the unknown value in the numerator of a proportion, which is why the ratios are written differently in the different parts of the problem.

3 0
2 years ago
In a certain population, 10% of the people can be classified as being high risk for a heart attack. a) Three people are randomly
VARVARA [1.3K]

Answer: 0.243.

Step-by-step explanation:

The probability in this case is approcimated by the probability distribution formula for random variables. This formula is denoted as:

P(X=r) = nCr * p^r * q^n-r

Where n = selected number to be sampled and in this case, n= 3

r = varied number of sample and in this case, r=1

P = probability of success and in this case p = 0.10

q = 1-p=1-0.1 = 0.9

P(X=1) = 3C1 × 0.1¹ × 0.9²

P(X=1) = 0.243.

3 0
3 years ago
Some one pls helps ASAP plsss I’ll give brainiest
7nadin3 [17]

Answer:

A is the answer

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Determine whether the lines are parallel, intersect or coincide <br> Y=-3x+4, y=-3x+1
posledela

Answer:

parallel

Step-by-step explanation:

they have same slope

4 0
3 years ago
Read 2 more answers
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