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2 years ago

Simplify the expression 8h + (-7.7d) -17 +5d -3.2h =

Mathematics

2 answers:

Airida [17]2 years ago

6 0

$(8h - 3.2h) \: + \: (7.7d + 5d) \: - 17 = 4.8h - 27d - 17$

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Anit [1.1K]2 years ago

4 0

Answer:

(8h - 3.2h) + (-7.7d + 5d) - 17 = 4.8h - 2.7d - 17

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$\bold{\huge{\underline{ Solution }}}$

<h3>Analysis of graph :-</h3>

We have given one graph which is plot between distance and time. where time is in minutes and distance is in seconds.

According to the graph

For the first 5 minute ( O to A) , The distance is continously increasing 2m / per minute .
For the 5 minute that is from 5 minute to 13 minute ( A to B) both marellize and her dog wally moving with the constant speed .
For next 3 minutes that is from 10 minutes to 13 minutes ( B to C) , The distance is continously decreasing with time .
For next 3 minutes that is from 13 to 16 minutes ( C to D) , Again they moved with constant speed .
For next 6 minute that is from 16 to 21 minutes ( D to E) . Again, There distance is increasing with time .
Again For next 4 minutes that is 21 to 25 minutes , they are moving with constant velocity .

<h3>Let's Begin :-</h3>

1) Between O and A

The marellize and wally when moving between O to A , The distance is constantly increasing with time.
The graph is Straight line

2) Between A and B

The marellize and wally when moving between A to B, The distance remains the same with time that is they moving with constant speed.
The graph is constant or steady

3) Between B to C

The marellize and wally when moving between B to C, The distance is constantly decreasing with time .
The graph is straight line but it follows decreasing function .

4) For covering the First 6 km ,

According to the graph,

For covering first 6 km, They took 3 minutes.

5) No, Marellize and wally walk does not from where they have started.

According to the graph

It is end at 5 m instead of 0m .

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2 years ago

if the machine can process 600 pretzels 15 minutes how long must the machine run in order to make 3120

kati45 [8]

78

step by step explanation:

first: divide 600 and 15

answer to 600/15: 40

second: divide 3120 and 40

final answer: 78

5 0

3 years ago

Simplify the expression ​8h + (-7.7d​) -17 +5d -3.2h =

Simplify the expression 8h + (-7.7d) -17 +5d -3.2h =