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kicyunya [14]
4 years ago
8

On a school field​ trip, the bus travels 22 miles in 30 minutes. Find the speed of the bus in miles per hour. Use the equation d

equals​rt, where d is​ distance, r is​ rate, and t is time.
Mathematics
1 answer:
I am Lyosha [343]4 years ago
6 0

Answer:

The answer to your question is r = 44 mi/h

Step-by-step explanation:

Data

distance = d = 22 mi

speed = r = ?

time = t = 30 min

Formula

               speed = distance / time or   r = d/t

Process

1.- Convert minutes to hours

                     60 min ----------------------- 1 h

                      30 min ----------------------- x

                                 x = (30 x 1) / 60

                                 x = 30 / 60

                                 x = 0.5 h

2.- Calculate the speed of the bus

                    speed = 22 mi / 0.5 h

                    speed = 44 mi/h

                             r = 44 mi/h

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If we let y represent Niki's height in inches, write an algebraic expression for Desmond's height. Help!
masya89 [10]

Answer: Y=height

Step-by-step explanation: if we had the height of the person we could fill it in for y. so if we have y (being the variable) that varies based on the gathered information.

7 0
4 years ago
If f(x) = 2x-5, which expression represents f(x+1)
ra1l [238]
F(x)=2x-5
Insert the value of x which is x+1 ->
F(x+1)= 2(x+1)-5
Distribute ->
F(x+1)=2x+2-5
Then, add like terms->
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4 0
3 years ago
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the area of a rectangular decks is 680 square feet. the decks width is 17 feet. what is its perimeter ?
Ket [755]
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2(40)+2(17)=Perimeter
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4 0
3 years ago
Car is driving at 30 kilometers per hour. How far in meters does it travel in 3 seconds?
Alenkasestr [34]

Answer:

25 meters

Step-by-step explanation:

30 km/hr = (30 km/1 hr)*(1000 m/1 km)*(1 hr/60 min)*(1 min/60 sec)

30 km/hr = (30*1000*1*1)/(1*1*60*60) meters per second

30 km/hr = 8.3333333333 m/s (approximate)

----------

The speed or rate is r = 8.3333333333 meters per second approximately, and the time is t = 3 seconds, so,

distance = rate*time

d = r*t

d = 8.3333333333 * 3

d = 24.9999999999

Due to rounding error, the true answer should be d = 25. We can see this if we opted to use the fraction from of 8.3333... instead of the decimal representation which isn't a perfect exact measurement.

4 0
3 years ago
Solve for x: -5bracket(-3x+1)=-45
NikAS [45]

Answer:

Step-by-step explanation:

Equation

-5(-3x+1)=-45     If this is not correct, leave a comment please.

Solution

-5(-3x+1)=-45                     Divide by -5

-5(-3x + 1)/5 = -45/-5              

(-3x + 1) =  9                       Remove the brackets

-3x + 1 = 9                          Subtract 1 from both sides

-3x + 1 - 1 = 9 - 1                 Simplify

-3x = 8                               Divide by  -3

-3x/-3 = 8/-3

x = -8/3

or

x = -2.66

or

x = - 2 2/3

8 0
2 years ago
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