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Chapter 5: Q. 185 (page 644)
The sum of two numbers is negative thirty. One number is five times the other. Find the numbers.
Two numbers are -25 and -5
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In the following exercises, solve the systems of equations by substitution.
Determine whether the ordered pair is the solution to the system
(a)
(b)
In the following exercises, translate to a system of equations and solve.
Nancy bought seven pounds of oranges and three pounds of bananas for \(17. Her husband later bought three pounds of oranges and six pounds of bananas for \)12. What was the cost per pound of the oranges and the bananas?
Manny is making quarts of orange juice from concentrate and water. The number of quarts of water is times the number of quarts of concentrate. How many quarts of concentrate and how many quarts of water does Manny need?
In the following exercises, solve the systems of equations by substitution.
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