Zusammenfassung der Ressource
Frage 1
Frage
Solve: 2w + 15 = 3w - 9
Antworten
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w = -24/5
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w = 24
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w = -24
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w = -6
Frage 2
Frage
Solve:10 - 4b = 2(b + 1)
Antworten
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b = -3
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b = -⅔
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b = 9
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b = 7
Frage 3
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When solving 14k = 168 2 + 7k, the answer is k = 12.
Frage 4
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Solve: 10d / 2 = 3d + 18
Antworten
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d = 9
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d = -9
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d = 9/4
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d = 9/7
Frage 5
Frage
When solving -8y - 24 = - 3y + 11, the answer is y = 7.
Frage 6
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22 - 8x = 6(3 + 2x)
Antworten
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x = ⅕
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x = 9
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x = 5/2
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x = 4
Frage 7
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Sally & Louis are racing on scooters. Sally can go at 15 meters per minute, and Louis is going 18 meters per minute. Sally starts a little bit ahead at 15m in front of the starting line and Louis starts right on the starting line. After how many minutes will Sally & Louis be side by side? Let x stand for how many minutes.
Antworten
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18x = 15x
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18x = 15x + 15
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18x + 15 = 15x + 15
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18x -15 = 15x + 15
Frage 8
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You decide to start using public transportation to get around. There are two different methods to pay. One method is to pay $2.00 per ride. The other method is to buy a monthly pass for $25 and then be charged just $0.50 per ride. After how many rides are these two options the same amount of money? Let x stand for the number of rides on the bus.
Antworten
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$2.00 * 25 = $0.50x
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$2.00x = $0.50x - $25
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$2.00x = 25x + .50x
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$2.00x = $0.50x + 25
Frage 9
Frage
Which operation is an inverse operation to multiplication?
Antworten
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addition
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subtraction
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squaring
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division