Hey there,
5x + 6 = 66
5x = 66 - 6
5x = 60
x = 60 / 5
= 12
Whenever a number crosses a equal sign it changes into its opposite - for example when 5 crosses the equal sign, it become -5.
Hope this helps :))
~<em>Top♥</em>
Answer:
1.5241579e+16 is the answer
Answer: 180
Explanation: 180 is divisible by ALL of the numbers. 2,3,4,6 and 10.
Happy studying ^-^
First symmetrically cut the octagon to get 8 pieces. (So that you will get the idea that this polygon is divided into 8 triangles)
Then find the area of one of the triangles:
Area of Triangle = 
A = 
× 12 × 19
A = 114 cm²
To find the area of the whole octagon shape:
A = 114 × 8 = 912 cm²
<em>Hope it helps!</em>
11.
(87+91+86+x)/4=90.
x=96.
13.
50×y > 130.
the lowest number could be 3, because 50×2=120, which is less than 130.
