Question

in estimating the cost of a pile of bricks measured as 2m*15m*1.2m,the tape is stretched 1% beyong the standard length if the count is 450 bricks to 1m^3 and bricks cost $100 per 1000,find the approximate error in the cost.

Answer 1

Answer on Question#37414 - Math - Algebra

In estimating the cost of a pile of bricks measured as $2\mathrm{m}^*15\mathrm{m}^*1.2\mathrm{m}$, the tape is stretched $1\%$ beyond the standard length if the count is 450 bricks to $1\mathrm{m}^3$ and bricks cost $100 per 1000, find the approximate error in the cost.

Solution

2*15*1,2=36 m^3 //Only bricks

36*450=16200 //number of bricks

100*16200/1000=1620 //value of all bricks

1620*0.01=16,2$ // the approximate error in the cost.