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pickupchik [31]
3 years ago
14

Which expression is equivalent to 1 over 5 m − 20?

Mathematics
1 answer:
laiz [17]3 years ago
7 0

1

-----------

5m -20


factor out a 5 in the denominator

1

-----------

5 (m -4)


Choice A

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I really need the answers for these I don't understand this
Yuri [45]
I tryed my best to figure out what all of the numbers were. if i got any wrong then please tell me and i will put the right answer in the comments.

1) 3/5= 5/x   (cross multiply)
     3x=5(5)
     3x=25
       x= 25/3 -or- 8.33

2) 2/4=x/12<span>   (cross multiply</span><span>)
</span> 2(12)=4x
     24=4x
       6=x
3) 10/x=5/9<span>   (cross multiply</span><span>)
   10(9)=5x
       90=5x
       18=x
4) 5/5=x/18</span><span>   (cross multiply</span><span>)
 5(18)=18x
     90=18x
       5=x</span>
8 0
3 years ago
Can a triangle be formed with the sides lengths of 7 cm, 5 cm and 12 cm?
laiz [17]

Answer:

NO because 7+5=12

The sum must be larger (not equal to) the longest side. If it's exactly the same, there's no room to for the shorter two sides to angle up to form a triangle.

5 0
3 years ago
Brandon answered 21 of the 25 questions on his history test correctly. What decimal represents the fraction of problems he answe
mamaluj [8]

Answer:

.84

Step-by-step explanation:

21/25 = .84

3 0
2 years ago
Round 0.888889 to the nearest hundredth
yKpoI14uk [10]
0.89
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Answer:

Pi R square

so 36*3.14= 113.4

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