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3 years ago

A pole that is

Mathematics

2 answers:

GarryVolchara [31]3 years ago

7 0

3.2 / 1.75 = height / 49.25
(49.25 * 3.2) / 1.75

 height = 90.0571428571 m

algol [13]3 years ago

6 0

A pole that is 3.2m tall casts a shadow that is 1.75m long. At the same time, a nearby tower casts a shadow that is

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Anna and Maya are competing in a dance tournament where dance moves are worth a certain number of points if a dance move it's do

Gre4nikov [31]

Anna's current number of points = 225 points.

She danced correctly and earned = 75 points.

And when she danced incorrectly she loses = 30 points.

Note: For dancing correctly earned points will be added and for dancing incorrectly loses points will be subtracted from the total points has in starting.

So, we can setup an expression as

Current points + earned points - loses points

Plugging values, we get

225 +75 -30 Required expression.

Adding 225 and 75, we get 300.

Therefore, 225 +75 -30 = 300-30.

Subtracting 30 from 300, we get

300-30=270.

Therefore, Anna's final score is 270 points.

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3 years ago

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TiliK225 [7]

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2 years ago

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ehidna [41]

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2 years ago

Add the two expressions. −2.4n−3 and −7.8n+2

Sphinxa [80]

Answer:

-10.2n - 1

Step-by-step explanation:

We have two expressions in variable n and we have to add the two expressions.

An important thing to note is that only like terms can be added. i.e. the term with "n" can only be added or subtracted to the term with "n". Similarly a constant can only be added or subtracted to a constant.

$(-2.4n-3)+(-7.8n+2)\\=-2.4n-3-7.8n+2\\=-2.4n-7.8n-3+2\\=-10.2n-1$

Thus, the two given expressions add up to -10.2n - 1

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2 years ago

If x - 2y + z = 5 and -x + 3y - z = 2, then y = ?

jok3333 [9.3K]

Answer:

y=10

Step-by-step explanation:

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3 years ago