Mathematics, 09.09.2021 07:30 zealandcui
A school principal wants to buy some book cases for the school library. She can choose between two types of book case. Type A costs $10 and it requires 0.6 m^2 of floor space and holds 0.8 m^3, of books. Type B costs $20 and it requires 0.8 m^2 of floor space and holds 1.2 m^3 of books. The maximum floor space available is 7.2 m² and the budget is $140 (but the school would prefer to spend less). What number and type of book cases should the principal buy to get the largest possible storage space for books?
Answers: 2
Mathematics, 21.06.2019 16:30
Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?
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Mathematics, 21.06.2019 17:00
Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?
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Mathematics, 22.06.2019 02:50
If $190 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 4 years? use the continuous compound interest formula: a = pert
Answers: 2
A school principal wants to buy some book cases for the school library. She can choose between two t...
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