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 Test Calculators and Practice Answers archive Word Problems Lessons In Depth

 Question 466024: Twenty-five percent of 88 is the same as what percent of 22? Click here to see answer by amoresroy(333)

 Question 466028: I'm in intermediate algebra. I'm in the chapter about quadratic functions and equations. So how do you find the domain? The problem I have is: F(x)=2x+3 / x-7 and it asks to state the domain of the given function. Please help!! Click here to see answer by richard1234(5390)

 Question 466093: How can we cancel out x in this problem. (Slope intercept) -8x + 7y= -21 Click here to see answer by ewatrrr(10682)

 Question 466106: Find the equation of the line that contains the point (4,7) and has a slope 1/4. Click here to see answer by rfer(12670)

 Question 466102: The square root of the sum of two consecutive integers is seven. Find the larger integer. Click here to see answer by Alan3354(30993)

 Question 466190: Determine whether the point (0, 8) is a solution of the system -3x + 9y = 72 9x + 3y = 24 by substituting the point into each equation. Click here to see answer by Alan3354(30993)

 Question 466349: There are four students, all of different hieghts, who are to be randomly arranged in a line. What is the probability that the tallest student will be first in line and the shortest student will be last in line? Click here to see answer by sudhanshu_kmr(1152)

 Question 466412: Find the midpoint between the points A (-2, 10) and B (-8, 18). please Click here to see answer by Gogonati(809)

 Question 466464: If a =/ 0 and the sum of x and 1/a is 0, then. (A) x = -1/a (B) x = -a (C) x = 1-a (D) x = a Click here to see answer by stanbon(57395)

 Question 466456: Which expression must be added to 3x - 7 to equal 0? (A) 0 (B) 3x + 7 (C) -3x + 7 (D) -3x - 7 Click here to see answer by Theo(3464)

 Question 466547: The ratio of males to female students is 2 to 5. If there is a total 4410 students, find the number of male and female students Click here to see answer by stanbon(57395)

 Question 466585: If 2x + 5= -25 and -3m - 6= 48, what is the product of x and m? (A). 270. (B). -33. (C). 3. (D). -270 Click here to see answer by rfer(12670)

 Question 466583: The expression 5x/6 + x/4 is equivalent to. (A) 13x/12. (B) 3x/5. (C). 5x to the second power/10. (D). 5x/24 Click here to see answer by Gogonati(809)

 Question 466682: What is the value of x in the equation x/2 + x/6 = 2 ? (A). 3. (B). 1/4. (C). 8. (D). 12 Click here to see answer by mananth(12270)

 Question 466683: If rain is falling at the rate of 2 inches per hour, how many inches of rain will fall in x minutes? (A). 30/x. (B). x/30. (C). 60/x. (D). 2x Click here to see answer by ilana(307)

 Question 466721: the area of a equilateral triangle is numericaly equal to its perimeter find its perimeter correct to 2decimal places Click here to see answer by mananth(12270)

 Question 466800: Find the area of a square with a perimeter of (24a) mm Click here to see answer by ankor@dixie-net.com(15661)

 Question 466811: A dehydrated patient needs a 6.8% saline IV. Unfortunately, the hospital only has bags of 4% and 7% saline solutions. How many liters of each of these solutions should be mixed together to yield 3 liters of the desired concentration? Click here to see answer by stanbon(57395)

 Question 466810: To buy both a new car and a new house, Tina sought two loans totalling \$332,888. The simple interest rate on the first loan was 8.9%, while the simple interest rate on the second loan was 6.0%. At the end of the first year, Tina paid a combined interest payment of \$20,230.51. What were the amounts of the two loans? Click here to see answer by rfer(12670)

 Question 466897: How many km can a car travel in 2 hours if it speed is 40 km Click here to see answer by rfer(12670)
 Question 466897: How many km can a car travel in 2 hours if it speed is 40 km Click here to see answer by Big Poop(157)

 Question 466901: Which expression is rational? (A). square root of 1/4. (B). square root of 3. (C). square root of 1/2. (D). sqaure root of pie Click here to see answer by robertb(4012)

 Question 466808: Select the set of equations that represents the following situation: The cost of six CDs and twelve DVDs is \$73.26; and the cost of thirteen DVDs and twelve CDs is \$140.11. How much do a CD and a DVD cost? 6x + 12y = 73.26; 13x + 12y = 140.11 6x • 12y = 73.26; 12x • 13y = 140.11 6x • 12y = 73.26; 13x • 12y = 140.11 6x + 12y = 73.26; 12x + 13y = 140.11 Click here to see answer by stanbon(57395)

 Question 466805: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -5x – 7y = 25.5 -2x + 10y = -9 Click here to see answer by stanbon(57395)

 Question 466902: If a United States dollar is worth \$1.41 in Canadian money, how much is \$100 in Canadian money worth in United States money, to the nearest cent? Click here to see answer by robertb(4012)