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tensa zangetsu [6.8K]
3 years ago
6

The widths of two similar rectangles are 21 ft and 18 ft. What is the ratio of the perimeters? Of the areas?

Mathematics
1 answer:
Alenkinab [10]3 years ago
5 0

Answer:

7:6 and 49:36

Step-by-step explanation:

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-Dominant- [34]
1) -3(5x+2y=-3)⇒ -15x-6y=9
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Reasoning:
Step 1) In order to eliminate, first I had to multiple the first equation by -3 and the second by 2 so that when combining the equations y would cancel each other out so that I could solve for x. <em>Note: There are many combinations as to how you could multiple the equations so that either the x or y would cancel out.
</em>
Step 2) Once y is eliminated, solve for x.

Step 3) Now plug x back into one of the original equations and solve for y. <em>Note: Plug x back into one of the original equations, not the equations that were changed by multiplication,</em> 

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Helppppp! what is 2+6????
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Step-by-step explanation:

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