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Mathematics, 05.03.2021 17:00, Baecool5584
An vacuum cleaner is considered highly efficient if it picks up 60% of dirt after
passing over a spot once. If a vacuum cleaner with this efficiency passed over a spot
three times, what percent of dirt would remain on the spot? Answer to the nearest
tenth
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Answers: 3
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Mathematics, 21.06.2019 22:30, CatelynBGray
Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%
Answers: 1
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Mathematics, 22.06.2019 01:30, nickeymcorrea
The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.
Answers: 1
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