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3 years ago

Which is more, 45 dimes or 450 pennies?

Mathematics

2 answers:

Luden [163]3 years ago

7 0

Answer:

They are equal 45 dimes is equivalent to 450 pennies.

Step-by-step explanation:

I'm smart.

Llana [10]3 years ago

4 0

Answer:

they are equal

Step-by-step explanation:

1 dime is equal to 10 pennies

so 45x10 = 450

450=450

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Two planes, A and B, start from the same place and move in different directions, making an angle of 50º between them. The speed

cluponka [151]

Answer: The distance between them is 230.65 miles.

Step-by-step explanation:

Since we have given that

Speed of plane A (b) = 200 miles per hour

Speed of plane B (c) = 300 miles per hour

Angle between them = 50°

So,

We will use the "Cosine formula", we get

$a^2=b^2+c^2-2bc\cos A\\\\a^2=200^2+300^2-2\times 200\times 300\cos 50\textdegree\\\\a^2=40000+90000-120000\cos 50\textdegree\\\\a^2=130000-120000\times 0.64\\\\a^2=130000-76800\\\\a^2=53200\\\\a=\sqrt{53200}\\\\a=230.65\ miles\ per\ hour$

So, distance between the two planes after one hour will be

$Distance=\frac{Speed}{time}=\frac{230.65}{1}=230.65\ miles$

So, the distance between them is 230.65 miles.

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4 years ago

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Bingel [31]

Answer:

7.8

Step-by-step explanation:

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Simplify<br><br> 1/4(1-2/3)^2+1/3<br><br> answer as a simplified fraction

BlackZzzverrR [31]

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Step-by-step explanation:

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3 years ago

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B) Complete the table to show the total amount of calories Mary will burn for

nevsk [136]

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For 10 minutes she can burn 20-40 calories

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I hoped this helped!

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3 years ago

Can someone explain this to me?

bekas [8.4K]

Answer:

see below

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A) 12

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