Answer:
The width of the piece is 11 inches
Step-by-step explanation:
Let
x ----> the length of the rectangular piece of aluminum in inches
y ----> the width of the rectangular piece of aluminum in inches
we know that
The perimeter of the rectangular piece of aluminum is equal to
we have
so
simplify
----> equation A
----> equation B
Solve the system by substitution
substitute equation B in equation A
solve for y
therefore
The width of the piece is 11 inches
Answer:
9 red tiles
Step-by-step explanation:
Total number of tiles:
Total number of red tiles:
Probability of getting red in one draw:
<em>This means that you would expect to get red or 30% of the times.</em>
<em>Hence, when you draw tiles 30 times from the bag, you would expect red to be picked 30% of 30 times. This is:</em>
<em></em>
So, you would expect to draw a red tile from the bag 9 times.
25x400
x16
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