Part A
P(white) = (3 white)/(10 total) = 3/10
<h3>Answer: 3/10</h3>
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Part B
10 total, 3 are white
10-3 = 7 are not white so they are either black or red
P(black or red) = 7/10
<h3>Answer: 7/10</h3>
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Part C
Earlier in part B we calculated 7 beads that weren't white
This means P(not white) = P(black or red) = 7/10
They are the same probability just phrased slightly different ways.
<h3>Answer: 7/10</h3>
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Part D
There aren't any blue beads (unless there's a typo somewhere). So the probability of picking not blue is 100% or we represent this as the value 1.
<h3>Answer: 1</h3>
Answer:
x=-2
y=9
Step-by-step explanation:
3=y+3x ---- A
-x+3y=29 ----B
step 1. rearrange equation A, so you have the "y" variable on one side
3=y+3x
-3x -3x
3-3x=y
y=3-3x ---- C
step 2. Substitute equation C into equation B in place of "y"
-x+3(3-3x)=29 ---foil
-x+9-9x=29 -- collect like terms
-10x+9=29
-9 -9
-10x=20
÷-10 ÷-10
x=-2
Step 3. Substitute x=-2 into equation C to find y
y=3-3(-2)
y=3+6
y=9
Check you answer by subsituting x=-2 and y=9 back into equation A and B
Answer:
-3/4
Step-by-step explanation:
I hope this helps.
Answer:
0
Step-by-step explanation:
Slope is calculated y2-y1/x2-x1
18-18/0-3
0/-3
0
