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Alik [6]
4 years ago
8

Write a number sentence to add 6 ones to 21.Write number sentence to add 6 tens to 21

Mathematics
1 answer:
Semenov [28]4 years ago
8 0
I do suppose that you refer to adding these quantities:
6/1 + 21 = 6 + 21 = 27
<span>and
6/10 + 21
</span>= 3/5 + 21
= 3/5 + 105/5
<span>= 108/5</span>
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3 years ago
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a display at an aquarium has sea stars to wolf eels in a ratio 4 : 5. It also has 5/8 as many rockfish as sea stars. there are 4
r-ruslan [8.4K]

The number of sea stars is 64.

What is a ratio?

Comparing two amounts of the same units and determining the ratio tells us how much of one quantity is in the other.

In general, a: b, which can be interpreted as "a is to b," is used to denote a ratio between two quantities, let's say "a" and "b."

This ratio is expressed in fraction form as a/b. We utilize the same method for further simplifying a ratio as we use for further simplifying a fraction.

According to the question,

Ratio of sea stars to wolf eels = 4:5

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Using the given information, we get,

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On simplification,

Number of wolf eels = 80

So, number of sea stars = (4/5)*80

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brainly.com/question/2328454

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7 0
2 years ago
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