Monday

March 30, 2015

March 30, 2015

Posted by **Anonymous** on Monday, May 2, 2011 at 10:13am.

the first 10 feet. After that, the cost of the labor for each succeeding 10 feet is $25

more than the preceding 10 feet. That is, the next 10 feet will cost $125, the next

10 feet will cost $150, etc. How much will it cost to build a 90-foot tower?

- math -
**bobpursley**, Monday, May 2, 2011 at 10:38amlets look:90 ft will be 9 sections,

100+25+50+75+ 100+ ....25(i)...where i goes from 1 to 8

cost= 100+ Sum25i from i=1 to INT(h-10/10 (h-80)

but this is an arithmetic progression

cost= 100+ n/2(2*25+(n-1)25)

= 100 (4(50+375))=100+425*4=1800

- math -
**Ria**, Thursday, August 18, 2011 at 1:32pmlets look:90 ft will be 9 sections,

100+25+50+75+ 100+ ....25(i)...where i goes from 1 to 8

cost= 100+ Sum25i from i=1 to INT(h-10/10 (h-80)

but this is an arithmetic progression

cost= 100+ n/2(2*25+(n-1)25)

= 100 (4(50+375))=100+425*4=1800

**Answer this Question**

**Related Questions**

math - . A person hired a firm to build a CB radio tower. The firm charges $100...

math - 35. A person hired a firm to build a CB radio tower. The firm charges $...

math - A person hired a firm to build a CB radio tower. The firm charges $100 ...

mathematics - a person hired a firm to build a cb radio tower. the firm charges...

arithmetic - need a reinstatement A person hired a firm to build a CB radio ...

math - A person hired a fire to build a CB radio tower. the firm charges 100 for...

Math - Can you please explain step by step on how to do each of these two ...

economics (micro) - 2. In the table below, assume a monopsonist has the marginal...

Math/Economics - Suppose that a firm has only one variable input, labor, and ...

Math/Economics - Suppose that a firm has only one variable input, labor, and ...