Each boy in a class has 7 pockets and each girl in that class has 11 pockets. How many boys and how many girls are there in this
2 answers:
Answer: There are 10 boys and 7 girls in the class.
Step-by-step explanation:
Let x be the number of boys and y be the number of girls then according to the question we have the following equations :-
The value of y from (1) will be
, substitute this in equation (2), we get
∴
Hence, there are 10 boys and 7 girls in the class.
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Answer:
The balance after the payment is $1263.84.
Step-by-step explanation:
The formula for amount after compound interest is
Where, P is principal, r is rate of interest, n is number of time interest compounded in a period, number of periods.
According to the given information,
P=1455.69
r=0.128
n=365
t=45
Put these values in the above formula,
The amount after compound interest is $1478.84. Add late fee chages $35 in this amount and subtract the payment of $250. So, the balance amount after payment is
Therefore the balance after the payment is $1263.84.
Answer:
x ≈ 38.7°
Step-by-step explanation:
Using the sine ratio in the right triangle
sinx = =
, then
x = (
) ≈ 38.7° ( to 1 dec. place )