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3 years ago

How can you solve problems involving percents

1 answer:

6 0

You could set up a proportion. For example, what is 20% of 40
is %
--- = ----
of 100
is/40=20/100=1/5
5*8=40
8 would be the answer.

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It takes 4 hours and 15 minutes to fly from Orlando, Florida, to Boston, Massachusetts. The distance between the two cities is 1

3241004551 [841]

Answer:

262.12mph and 419kph

Step-by-step explanation:

Given: It takes 4 hours and 15 minutes to fly from Orlando, Florida, to Boston, Massachusetts. The distance between the two cities is 1114 miles

To Find: the average speend of the plane in miles per hour, If every mile is approximately 1.6 kilometers, the speed of the airplane in kilometers per hour

Solution:

Distance between Orlando,Florida and Boston, Massachusetts $=1114$ $\text{miles}$

Time taken to cover the distance $=4\text{hours}$ and $15\text{minutes}$

We know that,

$\text{Average Speed}=\frac{\text{Total Distance}}{\text{Total time}}$

$=\frac{1114}{\frac{17}{4}}$

$=\frac{1114\times4}{17}$

$=262.12$ $\text{mph}$

It is given that,

$1\text{mile}=1.6\text{kilometer}$

therefore,

$1\text{mph}=1.6\text{kph}$

Speed Of plane in Kilometers per hours $=\text{speed in mph}\times1.6$

$419.4\text{kph}$

Speed of in miles per hour is $262.12$ $\text{mph}$ and Speed in kilometer per hour $419.4\text{kph}$

3 0

3 years ago

Terry practices the same amount of time each day for his soccer tryouts. In 4 days, he has practiced for 360 minutes. Let x repr

n200080 [17]

Answer:

Step-by-step explanation:

390 ( 40; 6 )

7 0

2 years ago

Subtract.<br><br> (29v)−(−13v+59)

lbvjy [14]

Answer:

(29v)−(−13v+59)

29v + 13v - 59

42v -59

5 0

2 years ago

Read 2 more answers

3.5x = 20 Round to nearest hundredths<br> place

Virty [35]

Answer:

5.71

Step-by-step explanation:

x = 20/3.5 = 5.71

7 0

2 years ago

Read 2 more answers

Based on past musical productions, a theater predicts selling 400−8p number of tickets when each ticket is sold at p dollars. Us

Dvinal [7]

To earn at least $3,200 in revenue, the ticket prices should be $10 or $40.

<h3>What is an Equation</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

Revenue = number of tickets sold * price per ticket = (400 - 8p)p

Revenue = 400p - 8p²

For no revenue:

400p - 64p² = 0

p = $0 or p = $50

For revenue of atleast 3200:

400p - 8p² = 3200

p = $10 or p = $40

To earn at least $3,200 in revenue, the ticket prices should be $10 or $40.

Find out more on Equation at: brainly.com/question/1214333

7 0

2 years ago