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Dmitrij [34]
3 years ago
14

X=y+2 X=2y+1 Solving Systems of Equations by subtraction Please solve this

Mathematics
1 answer:
vivado [14]3 years ago
8 0

Answer:

x=3

y=1

Step-by-step explanation:

We can subtract the first equation from the second to find the value of y, although we can also do this vice versa.

x-x=2y+1-y-2

y-1=0

y=1

Now, we can use substitution to solve for x:

x = y+2 (pick any equation for substitution)

x=1+2

x=3

Hope this helps :)

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Figure ABCD - Figure EFGH
Colt1911 [192]
<h3><u>Answer:</u></h3>
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<h3><u>Step-by-step explanation:</u></h3>

We know that:

  • <u>Trapezoid ABCD has one side that is 25 unit. </u>
  • <u>The other 3 sides (AB, BC, and CD) are 12 units. </u>
  • <u>EF = 6 units</u>
  • <u>EH = 12.5</u>
  • <u>Trapezoid ABCD is congruent to Trapezoid EFGH</u>

<em>If the 3 sides of the trapezoid ABCD are the same sides, then side EF, FG, GH must be of the same length because of congruence. The value of FG and GH must be the same length as EF. We can clearly see in the picture that EF is 6 units. Hence, EF is 6 units, FG is 6 units, and GH is 6 units. The work of the perimeter is shown below.</em>

<u>Work</u>

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  • => <u>30.5 units</u>

Hence, the perimeter of EFGH is 30.5 units.

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