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Harman [31]
3 years ago
12

Sandy recently made a 210-mile car trip, starting from home at noon. The graph at right shows how Sandy’s distance from home (me

asured in miles) depends on the number of hours after noon. Make up a story that accounts for the four distinct parts of the graph. In particular, identify the speed at which Sandy spent most of the afternoon driving.
​

Mathematics
1 answer:
vichka [17]3 years ago
5 0

There is no one set answer as you could get creative to have multiple variations; however, they should all have the same key features.

One such story could be this:

Sandy starts driving at noon and her average speed is 30 mph. After 1 hour, she realizes that she may not make it in time, so she increases her speed to 60 mph. Or perhaps that traffic lightened up to allow her to drive faster. By 2 PM, she stops for gas and food. She also decides to rest for an hour. At 3 PM is when she starts driving again, and does so at an average speed of 60 mph like the second leg of the trip. She finally arrives at her destination at 5 PM, which is 5 hours after she started.

Sandy spent the most time driving <u>60 mph</u> which consists of the second and fourth parts of the trip. If you ignore the rest period, then it would be the second and third driving parts of the trip.

---------------------

If you're wondering how I got the speed values, I used the slope formula

m = (y2-y1)/(x2-x1)

So for instance, the slope through (0,0) and (1,30) is

m = (y2-y1)/(x2-x1)

m = (30-0)/(1-0)

m = 30

Showing the first leg of the trip she had an average speed of 30 mph.

The flat part of the graph has slope 0 to indicate that Sandy isn't driving at all during that period (since her mileage y value isn't going up).

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kompoz [17]

Answer:

A is correct Please brainliest me

Thus, also saying that it is equivalent.

Step-by-step explanation:

The expression stated- (3m+1-m)

It also states to give a equal amount

What is equalevent expression?- Equivalent expression are those expression  that looks different but are same.

For example, 2+2 is 4 and 1 plus 3 is 4

it is different expression but the same answer.

The Expression- 3m+1-m

Simplify. How?- By adding LIKE terms.

Here- 3m+ 1 - m = (3-1) m + 1

see the same.

To conclude, 3-1) m + 1  = 2m + 1

If you’d wanna write in another way, it would be 2m + 1 can be written as m + m + 2 - 1

so a is correct

4 0
3 years ago
Evaluate<br> + pq when p = 8 and q = 6.
Veronika [31]

Answer:

48

Step-by-step explanation:

pq

substitute values

(8)(6)

8*6 = 48

6 0
3 years ago
HELP ASAP ALL THREE PLEASE 1. if a cyclic alkene has 12 carbon atoms, how many hydrogen atoms does it have 2.if a cyclic alkene
Marina CMI [18]

Answer:

1. 24

2. 6

3. No

Step-by-step explanation:

The formula for cyclic alkene is C^{n} H^{2n}, so if it has 12 carbon atoms, it will have double the amount of hydrogen atoms, therefore, 24 hydrogen atoms.

The same works in reverse. If we have 12 hydrogen atoms in this, then there will be half the amount of carbon atoms, therefore 6.

Since the relationship between Carbon and Hydrogen here is double and half, odd numbers can't be divided by 2 and end up with a whole number, so an odd number of hydrogen atoms is not possible.

Hope this helped!

5 0
3 years ago
A right triangle has a leg of 11 cm and a hypotenuse of 17 cm.
nordsb [41]
A^2 + b^2 = c^2
11^2 + b^2 = 17^2
121 + b^2 = 289
b^2 = 289-121= 168
b = 13.0 cm
3 0
3 years ago
Read 2 more answers
Jon, Leroy, and Simon are having a free-throw shooting contest. Each boy
Zolol [24]

Answer:

B

Step-by-step explanation:

If you arrange a statistics in order from least to greatest, the middle number is the median.

If there is even number of numbers in a list, let it be n numbers, then we take the average of n/2th and n/2 + 1 th terms.

Here, all of them have 6 numbers, so 6/2 = 3  and 4th, we take average of 3rd and 4th number to find the median.

Since they are arrange in order we check each:

Jon = average of 6 and 7, (6+7)/2 = 6.5

Leroy = average of 6 and 8,  (6+8)/2 = 7

Simon = average of 5 and 6, (5+6)/2 = 5.5

Leroy's median is the greatest (7).

8 0
3 years ago
Read 2 more answers
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