Answer: A) 2, 7, 9
<u>Step-by-step explanation:</u>
In a sudoku puzzle, there are three rules:
- Each vertical line must contain the numbers 1 - 9, with no duplicates
- Each horizontal line must contain the numbers 1 - 9, with no duplicates
- Each 3 x 3 box must contain the numbers 1 - 9, with no duplicates.
Using logic:
2 must go in the 1st box. It cannot go in the 2nd or 3rd shaded square because 2 is already in that 3 x 3 box.
That leaves the 2nd and 3rd shaded square.
9 cannot go in the 2nd shaded square because 9 is already in that vertical line.
Therefore, 9 must go in the 3rd shaded square.
That leaves the 2nd shaded square.
7 must go in the 2nd shaded square because it is the only number remaining (2 and 9 have already been placed in the other squares).
Start with x=y+13 then plug it in so you get 4(y+13) + 2y = 10
Then you get 4y + 52 +2y =10
Then you add you similarities to get 6y + 52= 10
Subtract 52 from both sides gets you 6y=-42. Then you divide and you get y=-7.
Then you plug that into your original equation so 4x + 2(-7) = 10
4x + -14 = 10
4x = 24
X= 6
Y= -7
Using proportions, it is found that:
1. 1.4 groups of 5/7 are in 1.
2. The result of 8 divided by 5/7 is of 11.2.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.
Applying a rule of three, to find how many groups of 5/7 are in 1, we divide 1 by 5/7, hence:
1/(5/7) = 7/5 = 1.4.
Hence 1.4 groups of 5/7 are in 1.
Following the same pattern, for item 2, we have that:
8/(5/7) = 8 x 7/5 = 56/5 = 11.2.
The result of 8 divided by 5/7 is of 11.2.
More can be learned about proportions at brainly.com/question/24372153
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