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Answer:
Step-by-step explanation:
The given problem above is an example of directly proportional word problem. It is a proportion where as one amount increases, another amount increases at the same rate.
Let us analyze the problem.
The problem is asking for the number of blue cars that the company will make if it makes 15 white cars. To find the answer, we need to represent the given data as ratio in fraction.
We have two items in the problem, the number of blue cars and the number of white cars. We can represent our ratio as blue/white.
Let x be the missing number.
5 blue cars for every 3 white cars = 5⁄3
blue cars to 15 white cars = x/15
The equation is the one below since they are directly proportional.
Solution:
To find the missing number in a proportion, we need to cross multiply.
5⁄3 = x/15
3 • x = 5 • 15
3x = 75
3x/3 = 75/3
x = 25
(This symbol • is the same as the multiplication sign.)
Final Answer:
25 blue cars
Checking:
5⁄3 = 25⁄15
3 • 25 = 5 • 15
75 = 75 ✔
For examples of word problems involving ratio and proportion, visit the links.
https://brainly.ph/question/281830
https://brainly.ph/question/867439
https://brainly.ph/question/2435621
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