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Alina [70]
3 years ago
10

In a group of 32 children there are 12 boys. what is the ratio of boys to girls?

Mathematics
2 answers:
Scilla [17]3 years ago
3 0
12 boys : 20 girls

12:20
Alinara [238K]3 years ago
3 0
You first have to find out how many girls there are:

32-12= 20

There are 12 girls and 12 boys
The ratio would be 12:12
We simplify and get 1:1 ratio

Hope this helps!
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The Magic Carpet charges $90 for installation and $9 per square yard of carpeting. The Carpeteria's installation price is $50 bu
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Answer:

The cost of the carpet at Magic Carpet is: 90 + 9*(area of carpet)

The cost of carpet at Carpeteria is: 50 + 13*(area of carpet)

The algebraic expression for which the cost is the same is: 90 + 9*(area of carpet) = 50 + 13*(area of carpet)

The area of carpet for which the cost is the same is: 10 square yard

Step-by-step explanation:

6a) The cost for magic carpet:

This company charges a fixed fee and a price for each square yard of carpeting, therfore the expression for the cost is:

cost = 90 + 9*a

Where a is the area of carpet to be installed.

6)b) The cost for Capeteria:

This company also charges a fixed fee and a price for each square yard of carpeting, so the expression is:

cost = 50 + 13*a.

6) c) The algebraic expression for the cost to be the same in both stores:

90 + 9*a = 50 + 13*a

6) d) We need to solve the expression above for a:

50 + 13*a = 90 + 9*a

13*a - 9*a = 90 - 50

4*a = 40

a = 40/4 = 10

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Answer:

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Step-by-step explanation:

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Using scalar multiplication, it is found that 5u = <10,20>.

<h3>What is scalar multiplication?</h3>
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In this problem, the vector is:

u = <2,4>

Since each term is multiplied by 5:

5u = <5 x 2, 5 x 4> = <10,20>.

To learn more about scalar multiplication, you can take a look at brainly.com/question/1821869

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Answer:

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Step-by-step explanation:

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Answer:

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