Answer: x = 8/4 = 2
12(2) + 4(6) = 24 + 24 = 48 = 6*8
Step-by-step explanation:
$12X + $6(4) = (X+4)*$8
12X + 24 = 8(x+4)
12x + 24 = 8x + 32
12x + 24 - 8x - 32 = 0
4x - 8 = 0
4x = 8
x = 8/4 = 2
Answer:
y = -2x+5
Step-by-step explanation:
2x+y=5
Subtract 2x from each side
2x-2x +y=-2x+5
y = -2x+5
Answer:
The center of this circle is at . The radius of this circle is .
Step-by-step explanation:
A circle with center and a radius of () could be expressed as:
.
(In other words, a point is on this circle if and only if the distance between that point and the center is equal to the radius.)
Rearrange this equation using binomial expansion to match the equation given in this question:
.
.
The equation in this question is:
.
Match up the coefficients of and in the two equations.:
- Coefficient of : .
- Coefficient of : .
Thus, and .
The constants of the two equations should also match up:
.
Substitute in as well as and solve for :
.
(since .)
Therefore, the center of this circle is . The radius of this circle is .
Answer:
6 weeks
Step-by-step explanation:
So the amount b we will have in our account w weeks from now is given by the equation:
To find out after how many weeks from now we will have $210, substitute 210 for b and solve for w:
Subtract 85 from both sides:
Add within the parentheses:
Divide both sides by 22:
In other words, we will have $210 after approximately 6 weeks.
Answer:
2/21x7/5 is 14/105
Step-by-step explanation: