Answer:306
Step-by-step explanation:
since the width of the bottom square is 10, you split it between the triangles on top. You have to do this because 7 is not the whole width of the two triangles. So then the width of the triangles would be 12, 12 times 9 is 108, you'd have 216 total for both triangles and then the area of the square is 90, 90 plus 216 is 306.
Answer:
n= 37 -8n
the first n is the end result, the second in the equation is the __ number, the nth number
Step-by-step explanation:
Reflecting over the x axis means to reflect the image vertically, so the result is the second from the right.
Similarly, reflecting over the y axis means to reflect the image horizontally, so the result is the second.
Finally, reflecting over the y=x line means to reflect the image over the bisector of first and third quadrant, so the result is the fourth
Answer:
x=5
Step-by-step explanation:
To start solving this, you want to solve an equation for y. I chose 3x - 7y = 4 for later purposes. Subtract 3x from both sides and divide by -7 to get y = 4 - 3x / -7. Now because we have a value for y in terms of x, plug this into the other equation, x + 7y = 16. It now should look like this: x + 7(4 - 3x / -7) = 16. Now just distribute the 7 and simplify the denominator to get x+ (-4+3x)=16. This can now be 4x +4 = 16, starting to look familiar now. Lastly subtract the 4 from both sides and divide by 4 to get x = 5. Hope this helps!
