Answer:
I think that is going to be x-3
I think it would go like this:[40- 2 (8+2)]=10 I think
Answer:
The answer is m = x + 2kn
Step-by-step explanation:
Rewrite the equation as −
2
k
n + m = x
. Add 2
k
n to both sides of the equation.
Step-by-step explanation:
Slope-intercept form: y = mx + c.
3x - 2y = 7
=> 2y = 3x - 7
=> y = 1.5x - 3.5.
Answer: 39 pounds of type A coffee were used.
Step-by-step explanation:
Let x represent the number of pounds of type A coffee that were used in the blend.
Let y represent the number of pounds of type B coffee that were used in the blend.
Type A coffee costs Lena $5.70 per pound, and type B coffee costs $4.25 per pound. The total cost of the mixture is $885.30. It means that
5.7x + 4.25y = 885.3- - - - - - - - - -1
This month's blend used four times as many pounds of type B coffee as type A. It means that
y = 4x
Substituting y = 4x into equation 1, it becomes
5.7x + 4.25 × 4x = 885.3
5.7x + 17x = 885.3
22.7x = 885.3
x = 885.3/22.7
x = 39
y = 4x = 4 × 39
y = 156
