Originally Posted by DenisB Jim has 3 times as many marbles as Jack has. If Jim had another 45 marbles, he would have 670 marbles. How many marbles does Jack have? Exactly. This is a word problem, but more specifically an algebraic word problem.
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When solving any word problems, keep it DUMB: Define your variables. Use them to write the equation(s). Manipulate and solve the equation(s). Be careful the solution(s) check out and that the answers have proper units.
Originally Posted by DenisB Jim has 3 times as many marbles as Jack has. If Jim had another 45 marbles, he would have 670 marbles. How many marbles does Jack have? Exactly. This is a typical algebra application found in most textbooks. These problems are fun to play with.
Originally Posted by DenisB Jim has 3 times as many marbles as Jack has. If Jim had another 45 marbles, he would have 670 marbles. How many marbles does Jack have? This is your typical algebra word problem found in most textbooks.