Challenging Mathematics Problems with Detailed Answers

A man has $290,000 invested in three properties. One earns 12%, one 10% and one 8%. His annual income from the properties is $27,600 and the amount invested at 8% is twice that invested at 12%.(a) How much is invested in each property? 12%property$ 10%property$ 8%property$ (b) What is the annual income from each property? 12%property$ 10%property$ 8%property$
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A sample of 1500 computer chips revealed that 25% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature states that 27% of the chips do not fail in the first 1000 hours of their use. The quality control manager wants to test the claim that the actual percentage that do not fail is different from the stated percentage. Make the decision to reject or fail to reject the null hypothesis at the 0.10 level.
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A factory building built for $400,000 depreciates continuously at 10% per annum. What is its value after 7 years?
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The figure above is maddie's bedroom .maddie is going to paint just the walls blue how many square feet will be painted blue
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Timothy drinks of a 16 ounce glass of juice in 30 minutes. How much would he drink in 2 hours?
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cual es el resuido de 72938
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The length of a diagonal of a square is 182 millimeters. Find the perimeter of the square.
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Convert [tex]\p\frac{5\pi }{18}[/tex] radians into degrees.
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A market stall holder bought a variety of coloured 'hoodies' to sell. Each hoodie costs the stall holder $20 and she intends to sell them to the public at a mark up of 65% 1) What profit does the stall holder make on the sale of each hoodie?
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An isosceles triangle has congruent sides of 20 cm. The base is 10 cm. Find the height of the triangle. Leave your answer in simplified radical form.
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I need help with this question.
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Guided PracticeThe equation k = 1.6d gives an approximate relationship between d miles and k kilometers. The distance between Boise, Idaho, and Reno, Nevada, is 430 miles. Express the distance in kilometers. A.431.6 kmB.268.8 kmC.688 km
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What is the length of the y-component of the vector shown below?
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