Chapter 6. Chapter 6 Solving Linear Equations

Pre-Test Question:

Math and Graphing Review
true
true
You must read each slide, and complete any questions on the slide, in sequence.

Question

lmG1wN2brtaQPVdXQi/BAw/fDIJ8wKAMduNBDjI2nFHsTXhIII3nFB00LnGESsuQyB/k1JCftWv54utPD+LjhNyRYZRoUX9Zkcgtq0b/junjAIogVozzLejhMFLIy0zJ4eC6Y4mYK6PH4F5xB9+RCrVPYXPA3DKGWHLlP3FKSWPNIGaYFQS2VDlgnyQt7K1f/Qwmm7lV3/d/bZy1rq/CNwkXFaok97XuOkhLMsUCFjva6ddvooSw7UzYNO5hEEbNny8WIoDJzYP36zCoLcq/iXJJo6AdP0/YR7xCzuooWidRl6tC220wCnnFoGxXwgcswxKS5vcODG8CrHRJFv70b6Cj4ShF9VfiYY1zZUOuTIJW0Zbk2tMI7yJ8rMzfSR7/ciTUxtgDCvXTVGp0ZoEpze6RcZSM7nR8OZRuZkyqxktWNPvkTIJ+4Z6wKRbL+iXXEFIjrg==
Correct! In equilibrium there will be 500 grapefruits sold!
Sorry,in equilibrium there will be 500 grapefruits sold. To determine the market equilibrium price, set quantity demanded equal to quantity supplied, then solve for the equilibrium price, which is $2. At the equilibrium price of $2, the market quantity will be 500.

Video

Post-Test Questions:

Question 6.1

G3V4/GwqL7ENZBAH50tPcta7xEZHsDt2lRrYYahyVM3xW9y7Jer7L2fKEq+oKhz1kGZU1cGt9gsq1WwmJ0yvJTHc0gg5CEnIudAHMMqazs67AnLEKYCpFkRnuaCXvXV2IherGISMnitaIpeoTo7r/FbjpN4U46xajxtZi5LKo4Tvf3dqmXeoKDW2dUUWXCV2R+1JwokXgu1h3r8XP4y/L4NTnXWl4/2LqLMrYrjVKQeVor/USk+eSqjcW/Zn/CkhpduD5g==
Correct! If the price for iPads is $300, then consumers will demand 2,500 iPads.
Sorry, if the price for iPads is $300, then consumers will demand 2,500 iPads. To determine the quantity demanded, substitute $300 for the variable P and solve for QD.

Question 6.2

kLMrWhL4HAnZwJXdy+FmF6IL8GUknoofarPxJyuD/hag8kzjdLagjgv/2AB8z1ORmBT6jJiiCwvS2GKE8i/KcmHfT0IFVqA2Mr3J1gSIUvExoWDa6G7Lp71PSgIqjBx8bcn8sYwLyLubblscDARyRASqtxLVq6e8KiAC0N6CO+D+AVH21GxoIPQ+g3Eqs54H9y/WPyjJBgUZdK6Y9O/xVZjSroapbQYaqs+ueq4ZTQRl+Medqy6L6g==
Correct! If the price for tacos is $5, producers will be willing to produce 150 tacos.
Sorry, if the price for Tacos is $5 then producers will be will to produce 150 tacos. First, solve the supply function for P= –10+QS/10. Next, set QS equal to 150 and solve for P, to get P=$5.

Question 6.3

aefas9w80XQCWRp2X8XWdKBA9V2XdNkPSudtZkD1+7tFfYZ/ly6ETBDFFCfUyMcW/8Ogh3efS3x7125yd++kFiWswa3tMKeMawDCtU0schliijWHLKva5LgQ2Qbp0rmVqaekCq5tIdBGYe32VxY0w+QkGey9tY+vasP7x9jvASoPpIWmiz43SXj1nvH8RzhIXg3sbE1j4WkCdXb63ouWOTVrA+lOKwZW0ZxrrMzQNrk5cF2O4dcDyoVnd4xCWk3zsto+q/3BHrXUTy0yzPoUGf4P7A9S6yWtlpSEsufEtXQlllYZfDDkzX4Hkh9aZqT5bBzL+ZufTF2HObaYZQ5JoIC4CEugw9V6Fn2cFDguNCnD/jMVfJQ0zttIEaecetONjC6Gag==
Correct! The equilibrium price for hamburgers will be $4.
Sorry,the equilibrium price for hamburgers will be $4. To determine the market equilibrium price, set quantity demanded equal to quantity supplied and solve for the equilibrium price, to get $4.

Question 6.4

cydOOwVi6TcHVrCnYvfzyH4Aylo59+9B5Okg8cHeznJc14vVJK/h2dUU8zpu6twFntwQaczu4SD9wWRL7rTYE6Nji4InIeuhfZirOUSfkdFgb3tzFokGfd+VHjHHPwiWPVsuH5q9ZFMItxtsribNcee0xkJ2dKiVuY1u3fXcUMkeVmq7RKEjRgK1CQGsdsNP903qndr8AcviSlXkSamZM5wHtNcs9Tg9P6yRDZ1ZYXa6g8xLzRbp9wSSjyWvysBYZiymvXWOKdM2/Jo+s8id1PqMnkK7PdpyodtxaBSEJjSs0e/cBhyLdeQ7NQdMCFtcoYi8qOq1bzWsyLzzarJdpWN0dOnwlpOFqycj67p2aCaUm/O5tNbt1Iylynz8Zkn3YdTF/QCPbWvoizGaqabcSnsnFMb0NecDBdYb3UN8CeQn7Uxc2KGvoiATrMjuu0pH0uHs9ebE+gw=
Correct! The equilibrium price for bubble gum will be $1.25.
Sorry, the equilibrium price for bubble gum will be $1.25. To determine the market equilibrium price,first rewrite each equation to solve for QD and QS and then solve for the equilibrium price.

Question 6.5

8five8FCciwFUCXJflFmV00ehdTWZ2mGwL8/pSkuv2oB3bx30603SGcwzupD+hgESjeIPKn7zc/KHhZG0liDQo6AWNBoXEM2pk+ze0cCzV857z5EeNBniHzlElB5A66rmrpowTeH0J+3uZVIavpNID/o59EEgwgnOuO865aCxpF44XMzTSLc8FDrPF3ucBwGkUb48tFucDfNS5i9vzRQTJABOuXlhJRFp+bw7OZMJZA7SaCu6y/NObgijaAFB95o3TIpTs8ujxPUnDs8Ihl5hOgBWaJR1rd4lX/pNoorA2vrUt3YGhbrUR7JGOjeup2miH8/ye1sLRfRSVA92mZOW7XjefrOYE3fQ+Trym17R68=
Correct! 10 fewer cups of coffee are sold this week.
Instead of the 70 cups of coffee sold last week, 60 cups are sold this week, so 10 fewer cups of coffee are sold this week.