Answer:
B = 5 and F = 5
Step-by-step explanation:
Step 1: B = 5 because 350(5) = 1750
Step 2: F = 5 because 525(5) = 2625
Step 3: 2625 + 1750 = 4375
Answer: 22 quarters
Step-by-step explanation:
Let N be the number of nickels.
Then the number of quarters is (55-N)
The nickels contribute 5N cents to the total.
The quarters contribute 25*(55-N) cents to the total.
5N + 25*(55-N) = 715
5N + 1375 - 25N = 715
-20N = 715 - 1375 = -660
So there is 22 quarters inside the jar.
Check to see if my answer is correct-
33*5 + 22*25 = 715 cents
First term (a) = 5, common difference (d) = 1 - 5 = -4, last term (l) = -111
l = a + (n - 1)d
-111 = 5 + (n - 1) x -4 = 5 - 4n + 4 = 9 - 4n
4n = 9 + 111 = 120
n = 120/4 = 30
Therefore, there are 30 terms.
3. There would be fewer meters b/c meter is a bigger (in fact, 100 times bigger) than centimeters.
4. Meters, because beach is very long, and centimeter would not be an appropriate measurement.
