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شائع Word Problems >

Two trains leave stations 300 miles apart at the same time and travel toward each other. One train travels at 85 miles per hour while the other travels at 70 miles per hour. How long will it take for the two trains to meet?

الحلّ

Tw o t r ain s l e a v e s t a t i o n s 300 mi l es a p a r t a t t h e s am e t im e an d t r a v e l t o w a r d e a c h o t h er . O n e t r ain t r a v e l s a t 85 mi l es p er h o u r w hi l e t h e o t h er t r a v e l s a t 70 mi l es p er h o u r . Ho w l o n g w i ll i t t ak e f or t h e tw o t r ain s t o m ee t ?

الحلّ

time : 1 \frac{29}{31}

خطوات الحلّ

Translate the problem into an equation:

85 x + 70 x = 300

85 x + 70 x = 300, x

حلّ لـ:

x = \frac{60}{31}

حوّل من كسر تخيّليّ لعدد مختلط

time : 1 \frac{29}{31}

أمثلة شائعة

To the nearest two decimal places, find the amount in a bank account after 5 years at 6% annual percentage rate compounded monthly if the money initially deposited was 15,000 .You deposit 5000 in an account earning 5% interest compounded monthly. How much will you have in the account in 5 years?Mackenzie puts 600.00 into an account to use for school expenses. The account earns 8% interest, compounded monthly. How much will be in the account after 7 years?An initial amount of 3200 is invested in an account at an interest rate of 3.5% per year, compounded continuously. Assuming that no withdrawals are made, find the amount in the account after three years.Maria borrowed 15,000. She repaid the loan in full at the end of 3 years with a lump sum of 18,500. What annual flat interest rate was she charged?