Tema
Q:
38]
nobert buys a car for \( \$ 18160 \).
He pays a deposit of \( \$ 6460 \).
He pays the rest of the money in 24 equal monthly payments.
Work out the amount of each monthly payment.
Q:
5. (Utilidad marginal ) Si la ecuación de demanda es \( 10 p+x+0.01 x^{2}=700 \) y la función costo es
\( C(x)=1000+0.01 x^{2} \), evalúe la función utilidad marginal si:
a. \( x=100 \)
b. \( p=10 \)
Q:
Sam opened a savings account with \( \$ 400 \). He earns \( \$ 1,640 \) a
month at his job and will deposit \( 3 \% \) of his monthly pay every
month into his new savings, account. Assuming he doesn't
withdraw money from his savings account, which equation shows
the balance \( y \) of his savings account \( x \) months after he opened it?
\( y=12 x+400 \)
\( y=400 x+1640 \)
\( y=49.2 x+400 \)
Q:
11. Mr. and Mrs. Weinman flew to New Mexico
to visit their daughter. They received a \( 15 \% \)
reduction in the regular fare of \( \$ 640 \) each.
Find the cost for both to fly.
Q:
Landon invested \( \$ 110 \) in an account paying an interest rate of \( 4.1 \% \) compounded
continuously. Assuming no deposits or withdrawals are made, how much money, to
nearest hundred dollars, would be in the account after 5 years?
Q:
Carson invested \( \$ 3,900 \) in an account paying an interest rate of \( 2.1 \% \) compounded monthl
Assuming no deposits or withdrawals are made, how much money, to the nearest ten
dollars, would be in the account after 14 years?
Q:
Carson invested \( \$ 3,900 \) in an account paying an interest rate of \( 2.1 \% \) compounded month
Assuming no deposits or withdrawals are made, how much money, to the nearest ten
dollars, would be in the account after 14 years?
Q:
8. Dwight Ensley bought a new car with a list
price of \( \$ 22,450 \). He had to pay \( 5 \% \) state sales
tax, \( \$ 325 \) in miscellaneous fees, and a \( \$ 46.80 \)
registration fee. What was the total cost of
the car?
Q:
3) Calcula los sigulentes porcentajes.
a) \( 25 \% \) de 120 es:
b) \( 40 \% \) de 250 es:
c) \( 51 \% \) de 999 es
d) ¿Qué porcentaje de 200 es 50 ?
e) Aumenta un precio de \( \$ 800 \) en un \( 15 \% \). ¿Cuál es el nuevo precio?
f) Aumenta un precio de \( \$ 8500 \) en un \( 25 \% \). ¿Cuảl es el nuevo precio?
g) Disminuye un precio de \( \$ 4000 \) en un \( 40 \% \). ¿Cuảl es el nuevo precio?
Q:
Darla received her paycheck from Teddy Bears and More.
Her gross income for the last two weeks was \( \$ 846 \) (she's
their top salesperson). Darla had federal taxes of \( \$ 218 \),
state taxes of \( \$ 42 \), and Social Security taxes of \( \$ 48 \) that
were withheld (sent directly to the government). What was
the total amount that Darla paid in taxes for the last two
weeks? What was Darla's net income for that period?
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