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question:Compute 3 begin{pmatrix} 2 -8 end{pmatrix} - 2 begin{pmatrix} X -7 end{pmatrix}. If we know the answer to the above question is begin{pmatrix}4-10end{pmatrix}, what is the value of unknown variable X?
answer:We are given the equation: 3 begin{pmatrix} 2 -8 end{pmatrix} - 2 begin{pmatrix} X -7 end{pmatrix} = begin{pmatrix} 4 -10 end{pmatrix} To find the value of X, we can compare the corresponding components of both sides of the equation. For the first component: 3(2) - 2(X) = 4 Simplifying, we have: 6 - 2X = 4 Subtracting 6 from both sides of the equation, we find: -2X = -2 Dividing both sides of the equation by -2, we get: X = 1 The value of X is 1. The answer is: 1
question:f Julia purchased 3 packs of red balls, 10 packs of yellow balls, and 8 packs of green balls, with each pack containing 19 balls, what is the total number of balls that Julia bought?
answer:Julia purchased 3 packs of red balls, so she bought 3 * 19 = 57 red balls. She also purchased 10 packs of yellow balls, so she bought 10 * 19 = 190 yellow balls. And she purchased 8 packs of green balls, so she bought 8 * 19 = 152 green balls. Therefore, Julia bought a total of 57 + 190 + 152 = 399 balls. 399 The answer is: 399
question:New York is two-thirds as populated as all of New England. If New England has x people, calculate the combined population of both states. The answer is 3500000. What is the value of unknown variable x? What is the value of unknown variable x?
answer:To solve this problem, we need to determine the value of x, which represents the population of New England. We know that New York is two-thirds as populated as all of New England. Therefore, the population of New York is (2/3)x. The combined population of both states is given as 3500000. We can set up the equation as follows: Population of New England + Population of New York = Combined population of both states x + (2/3)x = 3500000 Let's simplify and solve for x: (3/3)x + (2/3)x = 3500000 (5/3)x = 3500000 To isolate x, we multiply both sides of the equation by 3/5: (5/3)x * (3/5) = 3500000 * (3/5) x = 2100000 The value of x is 2100000. 2100000 The answer is: 2100000
question:f Trace has five shopping bags that weigh the same amount as Gordon's two shopping bags, and one of Gordon's bags weighs three pounds while the other weighs seven pounds, what is the weight of one of Trace's shopping bags?
answer:If one of Gordon's bags weighs three pounds and the other weighs seven pounds, then the total weight of Gordon's bags is 3 + 7 = 10 pounds. If Trace's five shopping bags weigh the same amount as Gordon's two shopping bags, then each of Trace's bags weighs 10 / 5 = 2 pounds. Therefore, the weight of one of Trace's shopping bags is 2 pounds. 2 The answer is: 2