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Systems of Equations - SAT prep Flashcards | StudBud

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Solve this system of equation: x-4=y and 2x+4y=16

Cows have 4 legs and birds have 2. There are 50 heads and 140 feet, how many cows are there?

Systems of Equations - SAT prep

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Questions 6

Answers

1
Cows have 4 legs and birds have 2. There are 50 heads and 140 feet, how many cows are there?
15 cows
10 cows
20 cows
30 cows
2
Solve this system of equation: x-4=y and 2x+4y=16
(2,6)
(5.333, 1.333)
(5.667, 1.667)
(1.333, 5.333)
3
If 7x+y=25 and 6x+y=23, what is the value of x?
11
6
20
2
4
Solve the system of equations: x-3y=-5 and 2x+5y=12
(-1,2)
(-2,1)
(2,1)
(1,2)
5
7x+3y=20 and -4x-6y=11. Find the value of 3x-3y.
16
6
27
31
6
Bob has $1.50. If he has only quarters and nickels and 14 coins, how many nickels does he have?
3
10
8
6