I'm going to use the substitution method.
If y = - 3/2 - 7, then:
1/2x + 5 = - 3/2x - 7
Combine like terms:
4/2x = - 12. Mutiply both sides by 2/4 to get x = -12 (2/4)
Simplify to get:
x = - 6.
Plug - 6 back in for x in either equation.
Y = 1/2( - 6) + 5 which becomes Y = - 3 + 5.
X = - 6, Y = 2
2 cups of milk would be needed to make 72 cookies
336 divided by 2 is 168.
so just change it up.
the two numbers can be 166+170
25 students.....10 of which passed...
percentage of students that passed : 10/25 = 0.4 = 40% <==
