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murzikaleks [220]
2 years ago
13

3 A piece of ibbon of lengh 84 cm is divided

Mathematics
2 answers:
earnstyle [38]2 years ago
8 0

Answer:

49cm

Step-by-step explanation:

1x+4x+7x=84

12x=84

X=7

4*7=28

7*7=49

So we can see 49cm is the longest.

xxMikexx [17]2 years ago
3 0

Add the 3 ratio portions together: 1 + 4 + 7 = 12

Divide total length by 12:

84/12 = 7

Multiply each ratio portion by 7:

1 x 7 = 7

4 x 7 = 28

7 x 7 = 49

The longest piece is 49 cm

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Answer:

Step-by-step explanation:

Here you go mate

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3 years ago
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svet-max [94.6K]
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I don't see any rounding necessary in this case. 

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if you don't get the desired sum, switch the factors up and down till you have the right combination. Note: Do not switch left and right. 

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3 years ago
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