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شائع Word Problems >

Patty walked her dog 1/2 mile in 10 minutes. At this rate, how many miles would she walk her dog in 50 minutes?

الحلّ

P a tt y w a l k e d h er d o g 1/2 mi l e in 10 min u t es . A t t hi s r a t e, h o w man y mi l es w o u l d s h e w a l k h er d o g in 50 min u t es ?

الحلّ

trip 2 distance : 2.5

خطوات الحلّ

Given Time:

trip 1 : 10

trip 2 : 50

Given Distance:

trip 1 : \frac{1}{2}

Represent the speed in terms of

x :

trip 1 : x

trip 1 Speed x Time 10 Distance \frac{1}{2}

Write an equation for trip 1Distance = Speed

\cdot

Time

\frac{1}{2} = x \cdot 10

\frac{1}{2} = x \cdot 10, x

حلّ لـ:

x = \frac{1}{20}

speed : \frac{1}{20}

Represent the distance in terms of

y :

trip 2 : y

trip 2 Speed \frac{1}{20} Time 50 Distance y

Write an equation for trip 2Distance = Speed

\cdot

Time

y = \frac{1}{20} \cdot 50

y = \frac{1}{20} \cdot 50, y

حلّ لـ:

y = \frac{5}{2}

\frac{5}{2} = 2.5

trip 2 distance : 2.5

أمثلة شائعة

6700 dollars is placed in an account with an annual interest rate of 8%. How much will be in the account after 24 years, to the nearest cent juilo invest 15,000 in a savings that pays %1.5 how much will be in the account after 5 years if julio makes no withdraws or deposits At what rate of interest will Rs. 2500 amount to Rs. 3200 in 7 years?rebecca and chris borrowed 2000 at an interest rate of 7% for a period of 3 years. What was the interest?Calculate the accumulated value of a 7-year continuous annuity of 1000 per year.The annual effective interest rate is 10%.