natilieyoungpelgob natilieyoungpelgob

15-10-2018
Mathematics

contestada

If 400 bricks measuring 81" by 31" are required to build a wall 42 ft. high, how long is the wall?

Respuesta :

austint1414 austint1414

15-10-2018

Area of one brick = 6.75x2.58=17.44[tex]ft^{2}[/tex]

Area of 400 bricks = 400x17.44=6975[tex]ft^{2}[/tex]

Total brick area divided by 42' height of wall = 6975÷42=166.07 ft

The correct answer is 166 ft

Hope this helps!!!

<3 -austint1414

Answer Link

Otras preguntas

A mixture of table salt and ice is used to chill the contents of hand-operated ice-cream makers. what is the molality of salt in a mixture of 2.00 lb of nacl an

A client being evaluated in the emergency room is unable to speak logically or follow directions. the client’s family states the client has been under a great d

Help!!!!!!! plz help me!!!!! i really need this work!!!!!

The ph of a solution is a measurement of the concentration of ______ ions in the solution

28-2.2y=11.6y +262.6

Tina has a history of asthma. what sounds might you hear during an asthma exacerbation?

28-2.2y=11.6y +262.6

College students often buy cheap pizza because it is more affordable. suppose after graduating, college students find high-paying jobs. the demand for cheap piz

Harley's insurance company needs to record its revenue for the last month. the company should include service revenues on the

A new sidewalk will be 6 feet wide, 100 feet long, and filled in a debt of 9 inches with concrete. How many cubic yards of concrete are needed?