The probability that the card will be a 4 or a 7 is 3/5 (A)- 1/5 plus 1/5 plus 1/5
The probability that the coin will be head both time is 1/4 (B)- 1/2 times 1/2
The probability that it will be a green and a odd number is 2/9 (B)1/3 times 2/3
Answer:
1.
8x + 6y = 28
9x + 3y = 39
Set to equal y.
8x + 6y = 28
6y = -8x + 28
y = -8/6x + 28/6
y = -4/3x + 14/3
9x + 3y = 39
3y = -9x + 39
y = -9/3x + 39/3
y = -3x + 13
Set equal to each other.
-4/3x + 14/3 = -3x + 13
Combine like terms.
5/3x = 25/3
Multiply by 3/5
x = 5
Plug x in.
y = -3(5) + 13
y = -15 + 13
y = -2
(5, -2)
2.
-2x - 9y = -3
-7x - 9y= -33
Set equal to y.
-2x - 9y = -3
-9y = 2x - 3
y = -2/9x + 3/9
y = -2/9x + 1/3
-7x - 9y= -33
-9y = 7x - 33
y = -7/9x + 33/9
y = -7/9x + 11/3
Set equal to each other
-2/9x + 1/3 = -2/9x + 1/3
0 = 0
infinitely many solutions
Answer:
A few simple example equations with parentheses are:
(5 + 1)3/5 = x
or
2(4 + 2i) = x
Answer:
y = -4x - 24
Step-by-step explanation:
Firstly, figure out the slope. To do that, plug the coordinates in the formula.
y2 - y1 / x2 -x1
= -24 - 0 / 0 - (-6)
= -4
The slope is -4/1x.
To figure out the y-intercept, you need to plug one of the coordinates into
y = -4x + b
0 = -4(-6) + b
0 = 24 +b
-24 = b
It’s 120%
6/5 is 1.2. Multiply by 100 to get a percent.