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anonymous
 4 years ago
can anyone help me solve 2 problems with substitution? :)
anonymous
 4 years ago
can anyone help me solve 2 problems with substitution? :)

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.02 = 2y  x 23 = 5y  4x

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0If you rearrange the first equation, you can get: x = 2y  2 You can then plug that into the x in the second equation. 23 = 5y  4(2y  2) Then just solve that for y. After you get y, plug y back into x = 2y  2 to get your x value. After you have both the x and y values, your done!

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0thank you! i got 12, 5

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0& i also have a last problem like that

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The measure of one acute angle in a right triangle is four times the measure of the acute angle. Write and solve a system of equations to find the measure of the acute angles.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Alright, so what do you know about the total degree measure of a triangle? The degree measure of a right angle?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Alright, good. Total angle measure = angle 1 + angle 2 + angle 3. 180 = 90 + angle 2 + angle 3 90 = angle 2 + angle 3 So the sum of the two acute angles is 90 degrees.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0If you let x = measure of the smaller acute angle, what is the measure of the bigger acute angle?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0that's the part i don't understand.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Well, the bigger acute angle is 4 times as much as the smaller one. Small acute angle = x Big acute angle = 4x

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0And their sum is 90 degrees, so 90 = x + 4x

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0You can do the rest right? :)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yes thank you!! :) i wish i had your brain lol

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Haha, thanks, don't worry, you'll get there :)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0and one more question, but short

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0x + 3 = y 3x + 4y = 7 so that would be; 3x + 4(x + 3) = 7 ?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0For systems, just try to find a way to substitute one equation into the other.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Good luck with the rest, byes. :)
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