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2 years ago

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On Monday, 263 fourth graders went to the Perot Museum with their class. On Tuesday, 187 fifth graders went. Each student paid $

27 for a ticket and lunch. How much money did the fourth and fifth graders need for the trip?

1 answer:

ira [324]2 years ago

3 0

Answer:

About $35

Step-by-step explanation:

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8+0=0+8 is what property

lubasha [3.4K]

Answer:

The property used is the commutative property.

Step-by-step explanation:

In the commutative property, the sum is the same if you reorder the numbers.

I hope this helped! :-)

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2 years ago

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Which is traveling faster, a car whose velocity vector is 201 + 25), or a car whose velocity vector is 30i, assuming that the un

ioda

Answer with explanation:

For any object having the velocity vector as

$\overrightarrow{v}=v_x\widehat{i}+v_y\widehat{j}+v_z\widehat{k}$

the magnitude of velocity is given by

$|v|=\sqrt{v_x^2+v_y^2+v_z^2}$

For car 1 the velocity vector is

$\overrightarrow{v}_1=20\widehat{i}+25\widehat{j}$

Therefore

$|v_1|=\sqrt{20^2+25^2}\\\\\therefore v_1=32.0156units$

Similarly for car 2 we have

$\overrightarrow{v}_2=30\widehat{i}$

Therefore

$|v_2|=\sqrt{30^2}\\\\\therefore v_2=30.0units$

Comparing both the values we find that car 1 has the greater speed.

7 0

2 years ago

Help me with this pls

swat32

Answer:

180

Step-by-step explanation:

guessed the answer

that was the easiest

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2 years ago

Seven hotdogs and four hamburgers cost $13. Four hotdogs and seven hamburgers cost $14.50. How much does one hamburger cost and

viva [34]

Answer:

hotogs=$1.50 hamburgers=$1

Step-by-step explanation:

h=hotdog b=hamburger

7h+4b=13

4h+7b=14.5

(7h+4b=13)-4b

4h+7b=14.5

h=-0.57b+1.86

4h+7b=14.5

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2 years ago

(-3) (4-5) I need help

-Dominant- [34]

Answer:

3

Step-by-step explanation:

I searched it up on the web

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2 years ago

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