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Question 304590: Suppose you are older than your brother, and at most, half your Father's age. Let x be your age, b your brother's, and f your father's. Write a compound inequality that describes the relationship of your age to that of your brother's and your father's.
Click here to see answer by blwinbbbles(106)  |
Question 304917: Mathematicians have been searching for a formula that yields prime numbers. One such formula was x2-x+41. Select some numbers for x, substitute them in the formula, and see if prime numbers occur. Try to find a number for x that when substituted in the formula yields a composite number. What number will solve for x?
Click here to see answer by themathtutor2009(81) |
Question 305389: Solve the problem. When Mary's car's tire pressure is 30 pounds per square inch (psi), it averages 20.8 mpg of gasoline. If the tire pressure is increased to 35 psi, the car averages 21.6 mpg of gasoline. If Mary drives an average of 20,000 miles per year, how many gallons of gasoline will she save in one year by increasing her tire pressure from 30 psi to 35 psi (round to the nearest unit)? Show your step by step work!
Click here to see answer by josmiceli(9664)  |
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