Answer:
never
Step-by-step explanation:
Answer:
2.8 gallons 0.5% milk
4.2 gallons 3% milk
Step-by-step explanation:
let 'x' = .5% milk
let 'y' = 3% milk
System of Equations:
x + y = 7
.005x + .03y = 7(.02)
I used the substitution method and solved the first equation for y: y = 7 - x
.005x + .03(7 - x) = .14
.005x + 0.21 - .03x = 0.14
-0.025x + 0.21 = 0.14
-0.025x = -0.07
x = 2.8
7 - 2.8 = 4.2
y = 4.2
this equation ( /2x-1/=5)can be solved if we solve the following equations:
2x-1=5
2x-1=-5
1)We solve the first equation:
2x-1=5
2x=5+1
2x=6
x=6/2
x=2
2) we solve the second equation.
2x-1=-5
2x=-5+1
2x=4
x=-4/2
x=-2
The solutions of this equation /2x-1/=5 will be: x=3 and x=-2
Answer: x=3 and x=-2
Answer:
q = (r - px) / x
or you could write it as q = (r/x) - p
Step-by-step explanation:
px + qx = r
qx = r - px
q = (r - px) / x
Answer:
Example 2 Solve for x and check: - 3x = 12. Solution. Dividing each side by -3, we obtain ... At this point we note that since we are solving for c, we want to obtain c on one side ... Example 7 Graph x > -5 on the number line.
Step-by-step explanation:
