Mathematics, 02.01.2020 17:31 GreenHerbz206
Robert makes 50 litres of green paint by mixing litres of yellow paint and litres of blue paint in the ratio 2: 3.
yellow paint is sold in 5 litre tins. each tin costs £26.
blue paint is sold in 10 litre tins. each tin costs £48.
robert sells all the green paint he makes in 10 litre tins. the sells each tin of green paint for £66.96.
work out roberts percentage profit of each tin of green paint he sells.
Answers: 1
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Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0
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Jahdzia wears her winter coat when the temperature is colder than -4 degrees celsius. write an inequality that is true only for temperatures (t) at which jahdzia wears her winter coat.
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Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias
Answers: 2
Robert makes 50 litres of green paint by mixing litres of yellow paint and litres of blue paint in t...
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