Math
Answer for x -
2x+3y=15
x-3y=3
x = 6
Answer for x -
3x - y = 7
2x + y = 8
x = 3
Answer for y -
2y + 7x = -5
5y - 7x = 12
y = 1
Answer for x -
x + y = 9
x - y = 5
x = 7
Brad and Triston both bought cookies from the same store. Brad spent $188 on 7 chocolate chip cookies and 11 sugar cookies. Triston spent $236 on 13 chocolate chip cookies and 11 sugar cookies.
Find the cost of one chocolate chip cookie.
Chocolate chip = $8
Answer for x -
2x + y = 15
3x - y = 5
x = 4
3u+2=15
1+2=10
u=4,z=3
2a + 2x=15
a+3z= 17
a=5,x=4
u + 6y = 32
u+3y= 17
u=2, y=5
Brad and Triston both bought cookies from the same store. Brad spent $188 on 7 chocolate chip cookies and 11 sugar cookies. Triston spent $236 on 13 chocolate chip cookies and 11 sugar cookies.
Find the cost of one sugar cookie.
Sugar cookie = $12
3c + 4u = 33
6c + 3u=36
c = 3,1 = 6
5a + 2v = 32
6a + 6v = 42
a=6,v=1
6u+v= 18
5u + 2v = 22
u=2,v=6
2b+v= 13
b+v=8
b=5,v=3
Bradley’s barn has all of the stalls filled with one animal in each stall. Bradley has a total of 20 stalls. The barn houses chickens and goats. There were a total of 76 legs.
How many chickens does Bradley have?
Chickens - 2
3a + 5u = 17
2a+u = 9
a=4,u=1
2x+3y=8
y=2x
(1,2)
2x+5y=22
3x-2y=54
(6,2)
Answer for y -
x + y = 9
x - y = 5
y = 2
Bradley’s barn has all of the stalls filled with one animal in each stall. Bradley has a total of 20 stalls. The barn houses chickens and goats. There were a total of 76 legs.
How many goats does Bradley have?
Goats - 18
Answer for y
2x+3y=15
x-3y=3
y = 1
Answer for y -
3x - y = 7
2x + y = 8
y = 2
Answer for x -
2y + 7x = -5
5y - 7x = 12
x = -1
Answer for y -
2x + y = 15
3x - y = 5
y = 7
The sum of two numbers is 46. Their difference is 8. What are the numbers?
27 and 19