Does anyone know how to do word problems? (pricing, car loan, and credit) need answers ASAP!?

I%26#039;m not asking for anyone to do my homework for me, but i would apprecitate it if you could at least show me how to solve the problems. i%26#039;m having a really hard time with them. thanks.

1. (pricing) The sticker price for a sound system on a new car is $408. The dealer%26#039;s cost is $342.

a. Write an equation relating the sticker price, dealer cost, and markup.

b. Solve the equation to find the mark up.

2. (car loan) The monthly payments on a 6%, three-year laon for a used car are $97.35. Find ech amount.

a. the amount borrowed

b. the deferred payment price

c. the finance charge

3. (credit) Kwan took out a five-year, $8000 education loan at 7.8% annual intrest. Find each amount.

a. the monthly payment

b. the deferred payment price

c. the finance charge

Does anyone know how to do word problems? (pricing, car loan, and credit) need answers ASAP!?

1.sticker price=402

dealer price=342

mark-up=sticker price-dealer price

=402-342=60

2.montlhy payment=97.35

yearly payment=97.35x12=1168.20

time of repayment=3years

if the amount borrowed is y

interest for 3years=y(6x3)/100=18y/100=9y/50

so y+9y/50=1168.20

or59y=1168.20x50

or y=990=amount borrowed

b%26gt; deferred payment price=1168.2

c%26gt; the finance charge=1168.20-990=178.20

3.total interest=8000x7.8/100x5=3120

a%26gt;monthly payment=(8000+3120)/60=185.33

b%26gt;the deferred payment price=8000+3120=11120

c%26gt;the finance charge=3120

Does anyone know how to do word problems? (pricing, car loan, and credit) need answers ASAP!?

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