A system of Three equations in Three unknowns
Consider the following system of three equations in three unknowns.
a. Solve the first equation for z.
b. Put the solution you got in part a for z into both the second and third equations.
c. Solve the system of two equations in two unknowns that you found in part b.
d. Write the solution of the original system of three equations in three unknowns.
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Chapter 3 Solutions
FUNCTIONS AND CHANGE COMBO
- Translate to a system of equations and solve: Anatole needs to make 250 milliliters of a 25% solution of hydrochloric acid for a lab experiment. The lab only has a 10% solution and a 40% solution in the storeroom. How much of the 10% and how much of the 40% solutions should he mix to make the 25% solution?arrow_forwardSolve the system of equations by elimination and explain all your steps in words: {5x+4y=102x=3y+27 .arrow_forwardUse the system of three equations in three variables to solve each problem. Work schedules A college student earns 198.50 per week working three part-time jobs. Half of his 30-hour work week is spent cooking hamburgers at a fast-food chain, earning 5.70 per hour. In addition, the student earns 6.30 per hour doing janitorial work. How many hours per week does the student work at each jobarrow_forward
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