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Geo777
24.07.2019 •
Mathematics
Farah has $700 in 20 dollar and 50 dollar bills. which of these could be the number of 50 dollar bills she has? a. 7 b. 8 c. 9 d. 11
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Ответ:
Value of the $50 notes = 7 x $50 = $350
Amount left = $700 - $350 = $350
Number of $20 = . $350 ÷ 20 = 17.5 (Not a possible answer)
Option B:
Value of the $50 notes = 8 x $50 = $400
Amount left = $700 - $400 = $300
Number of $20 = . $300 ÷ 20 = 15 (Possible answer)
Option C:
Value of the $50 notes = 9 x $50 = $450
Amount left = $700 - $450 = $250
Number of $20 = . $250 ÷ 20 = 12.5 (Not a possible answer)
Option D:
Value of the $50 notes = 11 x $50 = $550
Amount left = $700 - $550 = $150
Number of $20 = . $150 ÷ 20 = 7.5 (Not a possible answer)
Answer B
Ответ:
Ответ:
Step-by-step explanation:
Given that,
The radius of a circl is 11 m
We need to find the area of the circle. The forcemula for the area of a crcle is given by :
Put all the values,
So, the area of the circle is equal to
.