4 Blocks West, 5 Blocks East, 1 Block East, 2 Blocks West
W = West
E = East
<h2>4W + 5E + 1E + 2W</h2>
Simplify, by collecting like terms.
<h2>6W + 6E</h2>
Its 20 the sides are equal
Answer:
B
Step-by-step explanation:
Answer:
3156
Step-by-step explanation:
- <em>Used formula:</em>
- <em>(1² + 2² + 3² + ... + n²) =1/6*n(n + 1)(2n + 1)</em>
--------
- 10²+12²+14²+......+26² =
- (2*5)²+(2*6)² + (2*7)² + ... + (2*13)² =
- 4*(5²+6²+7²+...+13²) =
- 4*(1²+2²+...+13² - (1²+2²+3²+4²)) =
- 4*(1/6*13(13+1)(2*13+1) - (1+4+9+16)) =
- 4*(1/6*13*14*27- 30) =
- 4*(819 - 30) =
- 4*789 =
- 3156
Answer:
they must go 12 floors downwards because parking A has to be on the last floor
