Answer:2/5 = 40%
Step-by-step explanation:
Bethany already one green apple out, and we have 3 green apples and 2 red ones, so, if we want to know what is the probability that the second apple is red we will apply the follow formula: x/n, being X the favorable cases and n the total of cases, in this problem X is 2, because we want to now the RED apples, and N is the total of apples, being n = 2 red apples + 3 green apples = 5, the formula now looks like this: 2/5=? , we resolve it by doing the division and multiplying for 100, (2/5)100 =40 and now we add a % symbol, (2/5)100=40%, and that´s the answer!
Answer:
ox=-7
Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
x
=
4
,
−
7
Answer:
Different ways to solve a system of linear equations:
isolate one variable in one equation and replace it in the other equation
multiply/divide one equation by a constant and then add/subtract it to the other one, so that only one variable remains
graph the equation and look at the intersection point
If you graph the system:
there is only one solution if the lines intersects at only one point
there is no solution if the lines don't intersect each other (they are parallel)
there are infinitely many solutions if the lines overlap each other (they are the same equation multiplied by some constant)
Step-by-step explanation:
1st system
y = -x – 7
y = 4/3 x – 7
solution: x= 0, y = 7
2nd system
y = -3x – 5
y = x + 3
solution: x = -2, y = 1
3rd system
y = -2x + 5
y = 1/3 x – 2
solution: x = 3, y = -1
4th system
3x + 2y = 2
x + 2y = -2
solution: x = 2, y = -2
5th system
x + 3y = -9
2x – y = -4
solution: x = -3, y = -2
6th system
x – 2y = 2
-x + 4y = -8
solution: x = -4, y = -3
7th system
5x + y = -2
x + y = 2
solution: x = -1, y = -3
Answer:
12
Step-by-step explanation:
The formula to find the area of a circle is:
Where "r" is the radius of the circle.
In this case, the radius is 2, and as per what is given in this problem (what the problem asks one to use), pi is rounded down to 3.
The equation will be:
3 * 2^2
Simplify, remember the order of operations:
3 * 4
12
12w + 13¹/₃ = -6
<u> - 13¹/₃ - 13¹/₃
</u> <u>12w</u> = <u>-19¹/₃
</u> 12 12<u>
</u> w = -1¹¹/₁₈
