Use the substitution method to solve the following:
x+5y=10
-2x-6y=-8
What is x=-5
y=3
100
Use the elimination method to solve the following:
-4x-2y=-12
4x+8y=-24
What is x=6 y=-6?
100
kristin spent $131 on shirts. Fancy shirts costs $28 and plain shirts cost $15. If she bought a total of 7 then how many of each kind did she buy?
What is Fancy(x): 2
Plain(y): 5
100
What are three ways to determine is two equations are related?
substitution
elimination
poy graphing
200
use the substitution method to solve the following:
-2x-3y=-13
x=y=4
What is x=-1
y=5
200
Use the elimination method to answer the following:
3x + y = 9
4x - y = 5
What is x=2 y=3
200
There are 13 animals in the barn. Some are chickens and some are pigs. There are 40 legs in all. How many of each animal are there?
What is Chickens(x): 6
Pigs(y): 7
200
use the substitution method
u+6y=32
u+3y=17
u=2
y=5
300
use the substitution method to solve the following:
-4x+3y=1
-4x+y=-13
What is x=5
y=7
300
Use the elimination method to answer the following:
4x+8y=20
-4x+2y=-30
What is: x=7 y=-1?
300
A farmhouse shelters 10 animals. Some are pigs and some are ducks. Altoghter ther are 36 legs. How many of each animal are there?
What is Pigs(x): 8
Ducks(y): 2
300
use the elimination method
2a+2x=18
a+3x=17
What is x=4
a=5
400
Use the subtitution method to solve the following:
x+y=3
-2x-y=-3
What is x=0
y=3
400
Use the elmination method to to solve the following:
8x+y=-27
-9x+4y=15
What is x=-3
y=-3
400
A class of 195 students went on a field trip. They took 7 vehicles, some cars and some buses. Find the number od cars and the number of buses the took if each car hols 5 students and each bus holds 45 students.
What is Buses(x): 4
Cars(y): 3
400
use the substitution method
3u+z=15
u+2z=10
What is u=4
z=3
500
Use the substitution method to solve the following:
x-y=3
7x-6y =20
What is x=4
y=-1
500
Use the elimination methos to solve the following:
-10x+y=12
-2x-2y=-2
What is x=-1
y=2
500
A farmhouse shelters 11 animals. Some are goats and some are ducks. Altogether there are 34 legs. How many of each animal are there?
What is Ducks(x): 5
Goats(y): 6
500
A set of equations that you deal with all together at once