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anzhelika [568]
3 years ago
8

Due to erosion, a beach is

Mathematics
2 answers:
Olenka [21]3 years ago
5 0

Answer:

17 years

Step-by-step explanation:

do 85 divided by 5

vaieri [72.5K]3 years ago
5 0

Answer:

17 years

Step-by-step explanation:

-5 feet = 1 year

To do this you would do:

85 ÷ 5 = <u>17 years</u>

<u></u>

<u> </u>

Hope this helps!

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3 years ago
6. Solve the equation x2 = 80.
jonny [76]

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40

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80/2=40

4 0
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The model shows the expression 21 + 9. A model with 3 rows of 7 squares and 3 rows of 3 squares. Which expression is equivalent
DaniilM [7]

Answer: the answer is 3(7+3)

Step-by-step explanation: since 7+3 is in paranthases you add them first to get 10 and you multiply it by the 3 to get 30. We know its correct because 21+9=30.

7 0
2 years ago
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25% of what number is 9
Alexeev081 [22]
Keep in mind the the word "percent" translates to "for each 100." 25% can be read as "25 for each 100," which has the fractional representation \frac{25}{100} and the decimal representation 0.25. All of these representations are just different ways of writing the same value.

Note too that the fraction \frac{25}{100} can be reduced to \frac{1}{4}, so what the question is really asking is: 1/4 of what number is 9?

Well, if we know that 1/4 of the number is 9, we can easily find how large the whole number is by finding all 4/4 of it (the <em>whole</em> number)<em /><em />, or 4 x 9, which multiplies out to 36.
4 0
3 years ago
50 ÷ 4 = n.
jeka94

Answer:

12 r2

Step-by-step explanation:

50 divided by 4 equals that lol

5 0
3 years ago
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