Answer:
Perimeter of Triangle: 
Step-by-step explanation:
The perimeter is the sum of all of the sides of the triangle.
Hence, the perimeter 
Since the perimeter is 90, 
.
Subtract 15 from both sides:
Divide both sides by 6:
Answer:
Yes
Step-by-step explanation:
Both quadrilaterals have two triangles. The triangles that coordinate with the triangles in the other quadrilateral are proven congruent by AAS and AA. That makes the quadrilaterals congruent.
First, we can simplify the left side. (6+8x)/2 is equal to 3 + 4x. We can put the equation together at this point.
3 + 4x = 5x
we can subtract 4x from both sides to get our final answer,
3 = x, or x = 3. :)
Answer:
3× + 16 = 22.75
3× = 22.75 - 16
<u>3x</u><u> </u>= <u>6</u><u>.</u><u>75</u>
<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>3 3
x = 2.25
Answer:
$17.53
Step-by-step explanation:
$385.66 divided by 22 equals the how much each book cost
