Find the amount paid for the loan- $4800 at 9.9% for 4 years
1 answer:
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Answer:
Fern will knit 32 scarves in 8 nights.
Step-by-step explanation:
Number of scarves knitted by Fern in 5 night = 20
Relation between number of scarves knitted and number of nights is proportional,
Therefore, Number of scarves knitted (s) ∝ Number of nights spent to knit the scarves (n)
s ∝ n
s = kn
k =
Here, k = proportionality constant
For s = 20 and n = 5,
k =
k = 4 scarves per night
For 8 nights, by using the same proportionality rule,
k =
4 =
s = 32 scarves
Therefore, Fern will knit 32 scarves in 8 nights.
9514 1404 393
Answer:
x = -7, x = 9
Step-by-step explanation:
We presume your equation is ...
x² -2x -63 = 0
Factors of -63 that have a sum of -2 are -9 and +7. Then the factored equation is ...
(x -9)(x +7) = 0
Solutions make the factors zero.
x -9 = 0 ⇒ x = 9
x +7 = 0 ⇒ x = -7
The solutions to the quadratic equation are x = -7 and x = 9.
