Measure the length of the top of your desk in centimeters. Describe how you found the length.
2 answers:
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Answer:
Step-by-step explanation:
So we have the equation:
First, let's distribute the left side of our equation:
Multiply:
Now, let's isolate the y-variable. Subtract 4y from both sides:
The right side cancels. Subtract on the left. So:
Now, subtract 5 from both sides:
The left side cancels. Subtract on the right:
Now, divide both sides by 6. So:
The left will cancel. Therefore:
And we're done!
Answer:
Step-by-step explanation:
Step 1: Understanding the possible events
Selecting a chip from Urn I and then adding that chip to Urn II and then selecting a red chip from Urn II can be completed in two ways:
A. Selecting a red chip from Urn I and adding it to Urn II and then selecting a red chip from Urn II
B. Selecting a white chip from Urn I and adding it to Urn II and then selecting a red chip from Urn II
Therefore total probability is:
Step 2: Probability of selecting either chip from Urn I
Urn I contains 2 reds and 4 white chips, that gives a total of 6 chips.
Step 3: Probability of selecting a red chip from Urn II
Urn II originally contains 3 reds and 1 white chip, that gives a total of 4 chips.
Remember: Once a chip is added from Urn I to Urn II the total number of chips will increase in the Urn II
Case 1: When a red chip is added from Urn I to Urn II
Red chips = 4
White chips = 1
Total Chips = 5
Case 2: When a white chip is added from Urn I to Urn II
Red chips = 3
White chips = 2
Total Chips = 5
Therefore the total Probability of selecting a chip from Urn I and then adding that chip to Urn II and then selecting a red chip from Urn II can be calculated as: