In Exercises 33-41. use the four-step strategy to solve each problem. Use x, y. and z to represent unknown quantities Then translate from the verbal conditions of the problem to a system of three equations in three variables
The bar graph shows the average number of hours U.S. college students study per week for seven selected majors. Study limes are rounded to the nearest hour.
Soureet statista.com
The combined weekly study time (or students majoring in physics. English, and sociology is 50 hours. The difference between weekly study lime for physics majors and English majors is 4 hours The difference between weekly study lime for physics majors and sociology majors is 6 hours. Find the average number of hours per week that physics majors, English majors, and sociology majors spend studying.
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- Write a uniform motion problem similar to Example 4.15 that relates to where you live with your friends or family members. Then translate to a system of equations and solve it.arrow_forwardTake a handful of two types of coins, and write a problem similar to Example 5.46 relating the total number of coins and their total value. Set up a system of equations to describe your situation and then solve it.arrow_forwardIn Exercises 4-6, solve the system of equations graphically. y=9x2y=x+3arrow_forward
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