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24.03.2021 •
Mathematics
an employee at a department store is stocking cell phone cases. he has a box of 80 cases; among the 80 cases, 40 are black, 10 are white, and 30 are pink. if he reaches into the bag randomly and removes one at a time, what is the probability that the first three cases are all pink? write the probabilities and your answer as fractions.
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Ответ:
The complete question is as below and diagram is also attached:
Elena’s backyard is in the shape of a rectangle. She created a triangular-shaped flower bed (shown as the shaded region) to plant flowers in. The area of the triangular flower bed is 125 square feet. The area of her backyard that does not include the flower bed is 575 square feet
The correct answer is 575 sq. m²
Step-by-step explanation:
The area of triangle =
=
= 125
The area of square = A = LW
= 35 × 20 = 700
Thus, the answer will be
= 700 - 125
= 525.