Answer: 0.2
Step-by-step explanation:
Number of ways to select r things out of n things = 
Then , Total number of ways to select 2 out of 5 chores = 
Number of ways to selecting first 2 on list = 2 (either he choose top on the list first then second , or second person first then topper)
Now , the probability he will choose the first 2 on list = 
Hence, the probability he will choose the first 2 on list is 0.2.
Answer:
x = -7
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
Step-by-step explanation:
<u>Step 1: Define equation</u>
2.5x + 10 = x - 0.5
<u>Step 2: Solve for </u><em><u>x</u></em>
- Subtract <em>x </em>on both sides: 1.5x + 10 = -0.5
- Subtract 10 on both sides: 1.5x = -10.5
- Divide both sides by 1.5: x = -7
<u>Step 3: Check</u>
<em>Plug in x to verify it's a solution.</em>
- Substitute: 2.5(-7) + 10 = -7 - 0.5
- Multiply: -17.5 + 10 = -7 - 0.5
- Add/Subtract: -7.5 = -7.5
And we have our answer!
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Answer:
80
Step-by-step explanation:
The opposite angles in a cyclic quadrilateral are supplementary. The sum of the opposite angles is equal to 180˚
x+100=180
x=180-100=80
Answer:
34 inches
Step-by-step explanation :
54/360 X 20
