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Phổ biến Word Problems >

jet travels 600 miles in 5 hours. At this rate, how far could the jet fly in 8 hours? What is the rate of speed of the jet?

Lời Giải

j e t t r a v e l s 600 mi l es in 5 h o u rs . A t t hi s r a t e, h o w f a r co u l d t h e j e t f l y in 8 h o u rs ? Wha t i s t h e r a t e o f s p ee d o f t h e j e t ?

Lời Giải

trip 2 distance : 960

trip 1 speed : 120

trip 2 speed : 120

Các bước giải pháp

Given Time:

trip 1 : 5

trip 2 : 8

Given Distance:

trip 1 : 600

Represent the speed in terms of

x :

trip 1 : x

trip 1 Speed x Time 5 Distance 600

Write an equation for trip 1Distance = Speed

\cdot

Time

600 = x \cdot 5

Giải

x, 600 = x \cdot 5 : x = 120

speed : 120

Represent the distance in terms of

y :

trip 2 : y

trip 2 Speed 120 Time 8 Distance y

Write an equation for trip 2Distance = Speed

\cdot

Time

y = 120 \cdot 8

Giải

y, y = 120 \cdot 8 : y = 960

trip 2 distance : 960

trip 1 speed : 120

trip 2 speed : 120

Ví dụ phổ biến

Directions: Solve each problem using the 3-step process. The larger of two numbers is 12 more than the smaller number. If the sum of the two numbers is 74 , find the two numbers.You have a bank account that has a 6% interest rate and is compounded semiannually. How much should you deposit today to have $6000 in the account in 5 years with no withdrawal? Round to the nearest cent.One number is five less than three times another number. If the sum of the numbers is 3, find the numbers.0.08 is 10 times as great as what number?it $2000 in an account that earns simple interest at an annual rate of 4% How long $500 in interest?