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3 years ago

10

Wave erosion causes a coastline to recede at a rate of 3.5 centimeters each year. After 9.25 years, how many centimeters will th

e coastline have receded?

2 answers:

Nadya [2.5K]3 years ago

6 0

Answer:

-32.375

Step-by-step explanation:

MrRa [10]3 years ago

3 0

Answer:

The answer is -32.375cm.

Step-by-step explanation: I did the math in my notebook, and got it right in this assignment.

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Find the average value of the following numbers 87, 79, 84, 70, 90

dem82 [27]

82

Explanation

the average is calculated by dividing the sum of the values in the set by their number.

Step 1

Let

$\begin{gathered} \text{set}=\lbrace87,79,84,70,90\rbrace \\ the\text{ sum of the values is=87+79+84+70+90}=410 \\ n\text{umber of values= 5} \end{gathered}$

Step 2

apply the equation

$\text{Average}=\text{ }\frac{the\text{ sum of the values}}{\nu mber\text{ of values}}=\frac{410}{5}=82$

so, the answer is 82

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1 year ago

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Artyom0805 [142]

Answer:

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Step-by-step explanation:

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3 years ago

The price of an item yesterday was $40. Today, the price fell to $22. Find the percentage decrease.

klio [65]

Answer:

45%

Step-by-step explanation:

40 * .45 = 18

40-18 = 22

7 0

3 years ago

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krok68 [10]

Answer:

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3 years ago

ABCD is a parallelogram. If / increases, then / A. remains the same B. doubles C. increases D. decreases

Anna11 [10]

Answer:

its C. increases

Step-by-step explanation:

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7 0

3 years ago

Read 2 more answers