2 years ago

Can you please help me with number 21 please

Mathematics

1 answer:

yKpoI14uk [10]2 years ago

8 0

Answer:

well it simply tells you if you think your right on all of them then press yes if not press no

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The DeJeu family plan to drive to Marietta, GA to Newark, NJ. The distance is about 880 miles and the majority of their trip wil

iVinArrow [24]

Answer:

$10:02:24\ \text{pm}$

Step-by-step explanation:

d = Distance to travel = 880 miles

s = Average speed of the car = 65 mph

Time taken to cover the distance is

$t=\dfrac{d}{s}\\\Rightarrow t=\dfrac{880}{65}\\\Rightarrow t=\dfrac{176}{13}\ \text{h}=13.54\ \text{hours}$

Time the car stopped

$3\times 10+60=90\ \text{minutes}=1.5\ \text{hours}$

Total time of the journey

$13.54+1.5=15.04\ \text{hours}$

Converting $0.04\ \text{hours}$ to minutes

$0.04\times 60=2.4$

So, the total time taken for the journey is $15\ \text{hours and }2\ \text{minutes and }24\text{seconds}$

Time when they reach their destination

$7:30+15:2.4\approx 10:02:24\ \text{pm}$

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2 years ago

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Miles
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3 years ago

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A cube is dilated by a factor of 2. How many times larger is the volume of the resulting cube than the volume of the original cu

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Answer:

Example:

Cube with sides: 3. V= 3x3x3= ?

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How many times bigger is the second answer? That’s it!

Step-by-step explanation:

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16 because if each chair has 4 legs you multiply that by the amount of chairs you have. 4x4=16

Step-by-step explanation:

4x4=16

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