Two friends take a drive around the city. When they get home, they look at the odometer and their watches, and determine they traveled 54 miles in 72 minutes. What was their average speed in miles per hour?

Answers

Answer 1

Answer: x miles per hour means that x miles / 60 minutes
If they traveled 54 miles / 72 minutes, so:
72 minutes - 60 minutes = 12 minutes
$(12)/(60) = 0,2$
60 minutes = 1
12 minutes = 0,2
1 + 0,2 = 1,2 hour
V = s/t
v - velocity or speed
s - linear distance traveled
t - time, so...
we must divide 54 miles by 1,2 hour = $54:1,2= 45$
Now, as we all know...
Their average speed was 45 miles per hour.

Answer 2

Answer: the question asks for the speed in miles per hour, so first thing we have to do is convert 72 minutes into hours by dividing by 60: 1.2 hours.
speed = distance / time
speed = 54 miles / 1.2 hours
speed = 45 miles/hour aka miles per hour aka mph

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y -2 1 10 2

Answers

Relation t is a function because it has no repeating x values

the inverse of relation t is when u switch the x and y values.
ex. inverse of (0,-2) is (-2,0).

and yes, the inverse of relation t is also a function because there are no repeating x values.

What is the value of x? Round your answer to the nearest tenth if necessary.14.3

Right triangle whose two legs measure fourteen and x, and whose hypotenuse measures twenty

Answers

By the Pythagorean Theorem, x^2+14^2=20^2, so x^2+196=400, so x^2=204. Then, x=sqrt(204)~=14.3.

Help I don't understand this math problemsee attachment

please asap

thanks

Answers

Answer:

The value of the expression is 5/6.

How many minutes are there in 4 and half-hours?

Answers

1 hour = 60 minutes
2 hours = 2(60) = 120 minutes
3 hours = 3(60) = 180 minutes
4 hours = 4(60) = 240 minutes
4.5 hours = 4.5(60) = 270 minutes

Kathleen bought 8.3 ounces of walnuts. The next day, she used 1.7 ounces of them in a recipe. How many ounces does she have left?

Answers

Answer:

6.6 ounces left

Step-by-step explanation:

Take the amount she had and subtract the amount she used

8.3-1.7 =6.6

Answer:

She has 6.6 ounces left.

The number 1,563,385 rounded off to the nearest million becomes

Answers

Well the nearest million would be 2 million.

That is because 563,385 is closer to 1 million than it is to 0. So you have to move up to the next million.

It becomes 2 millions because 5 is hot number