The ratio of boys to girls at a movie is . If there are 21 girls, how many boys are at the movie?
1 answer:
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keep in mind that, a negative coefficient to "x", will make the graph reflect over the y-axis.
Answer:
(B)
Step-by-step explanation:
PRINCIPAL AMOUNT(p) = $400
RATE (r)= 250% = 2.5
INTEREST = $80
t = time (in days) = t/365
By using the formula,
r =
2.5 =
t =
t = 29.2
t = 29 days (approx)
Hence option (B) is correct.