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ratelena [41]
3 years ago
7

What time is four and a half hour before 11:45 am

Mathematics
2 answers:
MrRa [10]3 years ago
5 0

Answer:

11:45 - 4 hrs = 7:45 - 30 mins(1/2 hour)(1 hour=60 minutes) = 7:15

Anna [14]3 years ago
4 0

Answer:

7:15 AM

Step-by-step explanation:

First, take 11 - 4 to give you 7. The 11 comes from the starting time, and the four comes from the four and a half hours.

Next, you'll take 45 - 30 to give you 15. Again, the 45 coming from 11:45 and the 30, or 1/2, coming from the four and a half hours before hand.

In the end, you'll get 7:15. Since the starting time was in the AM, and we are going back in time 4 1/2 hours, it will still be AM. So we add AM onto the end of the 7:15 to get your answer.

Hope this helps :)

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Answer:

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Step-by-step explanation:

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3 years ago
Sarah drives her car 133 miles in 285 minutes. What is her average speed in miles per hour?
borishaifa [10]

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28 miles per hour

Step-by-step explanation:

133 miles/285 minutes = 133 miles/4.75 hours = 28 miles/hour

4 0
2 years ago
In an arithmetic sequence, = 5 and = 11.
Free_Kalibri [48]

Answer:

1134.62 (THE SUM OF 20 TERMS)

Step-by-step explanation:

First we write out our given information:

a8=2a2

a11=18

an is an arithmetic sequence.

Where here an means the nth term of our sequence.

What does an arithmetic sequence mean? It means to get to the next term in your sequence you add a constant (c) each time:

an+1=an+c

Equivalently:

an+1−an(n+1)−n=c

So an is of slope c (c2 is another constant):

an=cn+c2

Where here c2=a0 (Substitute in n=0 and see why that has to be the case if we let a0 exist)

Now we use the other given information to try to come up with a solution.

Let n=2:

a2=2c+c2

Let n=8, using the above equation we have:

a8=8c+c2=2a2=4c+2c2

Let n=11

a11=18

a11=11c+c2

But a11−a8=(11c+c2)−(8c+c2)=3c

Hence, a11=3c+a8

a11=3c+4c+2c2=18

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5 0
3 years ago
Two cars leave a town at the same time heading in opposite directions. One car is traveling 12 mph faster than the other. After
Katena32 [7]
<span>Find the speed of each car.
Let a be the first car
Let b be the second car
=> a = x miles per hour
=> b = x + 12 miles per hour
=> 2 (x+ x + 12) = 232 miles per hour
=> 2x + 12 = 232
=> 2x + 12 = 116
=> 2x = 116 - 12
=> 2x / 2 = 104 / 2
=> x = 52 (speed of Car A)
=> 52 + 12 = 64 miles per hour (speed of Car B)</span>



4 0
3 years ago
What is the value of 3.45 + 2.6 + 32.007?​
bulgar [2K]
38.057 is the total
4 0
3 years ago
Read 2 more answers
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