We use the equation 2x+8x=50.
10x=50
x=5
The rectangle will be 20 cm long and 5 cm wide.
Hope this helps!
20% of 55 is
11Convert your percentage into a decimal:

Multiply your decimal by 55:
Answer:
4. C. x = 4 or -4
Step-by-step explanation:
since both terms are perfect squares, factor using the difference of squares formula, a² - b² = ( a + b ) (
- b ) where
Answer:
c = 2 or c = -2
Step-by-step explanation:

Hope this helps.
Area = Length x Width
so, 88 = (something) x 8
Can you work out the something using mental math?