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g100num [7]
3 years ago
5

Please help me answer this!!!

Mathematics
1 answer:
galina1969 [7]3 years ago
6 0

Answer:That is a lot of things I cant seee. sorry

Step-by-step explanation:

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Before going to school, Eudora ran from her home to a secret laboratory at an average speed of 12 km. Since she was running late
Brrunno [24]

Answer:

Eudora spent 0.5 hours in running and 1.5 hours flying using her jet-pack.

Step-by-step explanation:

Let x represent time spent in running.

We have been given that the entire trip took 2 hours, so time spent in flying the jet-packs would be 2-x.

We know that distance is equal to speed times time.

\text{Distance}=\text{Speed}\times\text{Time}

Eudora ran from her home to a secret laboratory at an average speed of 12 km, so distance traveled by running would be 12x.

Eudora took one of her jet-packs and flew to her school at an average speed of 76 km, so distance covered by jet-packs would be 76(2-x).

We are told that Eudora traveled a total distance of 120 km. We can represent this information in an equation as:

12x+76(2-x)=120

12x+152-76x=120

Combine like terms:

-64x+152=120

-64x+152-152=120-152

-64x=-32

Divide both sides by -64:

\frac{-64x}{-64}=\frac{-32}{-64}

x=0.5

Therefore, Eudora spent 0.5 hours in running.

Upon substituting x=0.5 in expression for time spent in flying jet-packs, we will get:

2-x\Rightarrow 2-0.5=1.5

Therefore, Eudora spent 1.5 hours flying using her jet-pack.

7 0
2 years ago
Does the following infinite series converge or diverge? explain your answer.<br> 7+28+112+448+...
makvit [3.9K]
Infinite series can either be convergent or divergent. It is convergent if the series has a limit and would approach a certain real number. It is divergent if it has no limits. 

The given above is a series that is comprised of whole numbers and can go as large as the positive infinity. Because of this, the answer to this item is Divergent. 
8 0
3 years ago
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Reduce 5/20 and 4/20 and 3/20 and 12/20 please
posledela
1/4 and 1/5 and 3/20 and 3/5 respectively
4 0
3 years ago
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What is 1 add 1 please help!!!!!!!!!!!!!!!PS first person to get it correct gets brainiest
Nadusha1986 [10]

Answer: 2

Step-by-step explanation:

4 0
3 years ago
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Please help me ASAP! and thank you
FromTheMoon [43]

Answer:

214°

Step-by-step explanation:

Full circle measure = 360°

Measure of arc AB = 146° (central angle has the same measure as measure of intercepted arc)

Therefore:

Measure of arc ACB = 360° - arc AB

Measure of arc ACB = 360° - 146°

= 214°

8 0
2 years ago
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