Solve using any method. Mike and Shawna each improved their yards by planting grass sod and shrubs. Mike spent $143 on 11 ft² of grass sod and 11 shrubs. Shawna spent $119 on 7 ft² of grass sod and 11 shrubs. What is the cost of each?
grass $6 and shrub $7
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15
Solve using substitution y=4x+7 and y=-7x+15
x= 2 and y=1
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seesaw
Swap points!
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star
Double points!
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gift
Win 15 points!
Okay!
baam
Lose 25 points!
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10
Solve by graphing
y+3x=5
y=2x-10
(3,-4)
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20
Luna and Neville each improved their yards by planting devil's snare and geraniums. Luna spent 94 sickles on 4 devil's snare and 6 geraniums. Neville spent 194 on 14 devil's snare, and 6 geraniums. What is the cost of each?
10 sickles for Devil's snare, and 9 sickles for geraniums.
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heart
Other team wins 20 points!
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rocket
Go to first place!
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shark
Other team loses 20 points!
Okay!
baam
Lose 10 points!
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25
Jacob Kowalski is selling pastries in his new shop. He sells 5 niffler pastries, and 12 erumpent pastries for a total of 39 pounds. If a niffler pastry is one pound more than an erumpent pastry, how much to they each cost?
3 pounds for Niffler,
2 pounds for Erumpent
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15
At his joke shop, George Weasley sells 25 fake wands and 21 extendable ears. From that alone, he makes 523 galleons. If a fake wand costs 10 galleons, how much does one extendable ear cost?
13 galleons
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thief
Give points!
5
10
15
20
25
magnet
Take 25 points!
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fairy
Take points!
5
10
15
20
25
banana
Go to last place!
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10
Solve using any method
y=2x+4
3y-6x=12
Infinitely many solutions
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25
Newt Scamander bought 10 dragon eggs and 5 bowtruckles (saving them from the blackmarket) for a total of 1200 galleons. If dragon eggs cost 60 galleons more than bowtruckles, how much did they each cost?
100 galleons for Dragon
40 for Bowtruckles.
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15
Solve using elimination
2x+3y=-4
4x-25y=-8
x=-2 and y=0
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15
Solve using substitution. y=3x+13 and y=-2x-2
x=-3 and y=4
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20
Hogwarts is selling tickets to the quidditch finals. On the first day, the school sold 2 teacher tickets and 8 student tickets for a total of 90 knuts. Then the school took in 115 by selling 7 teacher tickets and 8 student tickets.
5 knuts for teacher tickets, and 10 knuts for student's tickets.