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astraxan [27]
3 years ago
13

Did I do this right? If so, are they congruent or not?

Mathematics
1 answer:
wolverine [178]3 years ago
7 0

Answer:

yea

Step-by-step explanation:

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Make the following conversion. 4mm = _____ cm 0.04 0.4 40 400
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Answer:

10 mm = 1 cm

4 mm = 4/10 cm

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Dave walked to his friend's house at a rate of 4mph and returned back biking at a rate of 10mph. If it took him 18 minutes longe
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Answer:

Step 1 of 2: Subtract.  

Subtract

(

negative 5 over 8  

−  

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8

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Step 1 of 2: Subtract, sub-step a: Subtract a negative.  

Subtract a negative

negative 5 over 8  

−  

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8

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negative 4 over 3  

−  

4

3

) =  

negative 5 over 8  

−  

5

8

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4 over 3  

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3

Subtracting a negative is the same as adding a positive.

Step 1 of 2: Subtract, sub-step b: Find common denominator.  

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negative 5 over 8  

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8

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4 over 3  

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3

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( 5 × 3 ) over ( 8 × 3 )  

5 × 3  

8 × 3  

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( 4 × 8 ) over ( 3 × 8 )  

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negative 15 over 24  

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Add

negative 15 over 24  

−  

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24

+  

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32

24

=  

(  

negative 15  

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3 years ago
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dedylja [7]
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