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3 years ago

10

Four years ago, Elliott was half as old as George. Two years from now, Elliott will be four-fifths as old as george. How old are

Elliot and George ?

1 answer:

garik1379 [7]3 years ago

6 0

We have to know how old George is so we can do that problem.

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In a continuous series, mean(x) = 80, assumed mean(A) = 60 and<br>EF=40 then find the value of EFd.

Aneli [31]

Using the given information, the value of Σfd is 800

<h3>Calculating mean using Assumed mean </h3>

From the question, we are to determine the value of Σfd

The formula for mean, using the assumed mean method is given by

$\bar x = A + \frac{\sum fd}{\sum f}$

Where $\bar x$ is the mean

A is the assumed mean

From the given information,

$\bar x = 80$

$A = 60$

$\sum f = 40$

Putting the parameters into the equation, we get

$80 = 60 + \frac{\sum fd}{40}$

$80-60 = \frac{\sum fd}{40}$

$20 = \frac{\sum fd}{40}$

$\sum fd = 20 \times 40$

$\sum fd = 800$

Hence, the value of Σfd is 800

Learn more on Mean here: brainly.com/question/20118982

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2 years ago

Raul has 4/5 pound of modeling clay. He needs to divide the clay into bags that hold 1/10 pound each. How many bags will he fill

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The Answer would be 8.

Step-by-step explanation:

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3 years ago

A bag has 6 number tiles numbered one through six. You draw a number tile, replace the tile and draw a second tile. What is the

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1n=n Answer:

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3 years ago

At Gloria’s Restaurant, the average diner tips the waiter 20% of their total bill (cost of meal). Jacob's bill was $66 How much

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Step-by-step explanation:

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