Answer:
Step-by-step explanation:
Let the monthly rent be x.
<u>Then we have:</u>
- x + 0.5x + 0.4x = 3800
- 1.9x = 3800
- x = 3800/1.9
- x = 2000
Monthly rent is $2000
Answer:
- 1.67
Step-by-step explanation:
f(x) =
- 
=
- 
=
- 2
= - 1 
= -1.6666666
= -1.67
The pattern is multiplying by 3. So it will be: 243, 729
Answer:
r = 6
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
PR² = PQ² + QR² , substitute values
(r + 4)² = r² + 8²
r² + 8r + 16 = r² + 64 ( subtract r² from both sides )
8r + 16 = 64 ( subtract 16 from both sides )
8r = 48 ( divide both sides by 8 )
r = 6