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3 years ago

Please help. problem involving magic squares

Mathematics

1 answer:

lana [24]3 years ago

4 0

Step-by-step explanation:

First, let us find the magic sum in each row/column/diagonal.

Sum of numbers from 1 to 9 = 45.

45 divide by 3 rows = 15 each row.

The magic sum is 15.

For the diagonals, we have:

8 + 5 + x = Magic sum = 15,

6 + 5 + y = Magic sum = 15.

Therefore x = 2 and y = 4.

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Roseann is spending money at the average rate of Php 75 per day. After 10 days, she has Php 50 left. The amount left depends on

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3 years ago

A seagull is flying 20 feet above sea level while a shark is swimming 30 feet below sea level. What is the distance between the

Sav [38]

Answer: 50 ft

Step-by-step explanation:

The seagull is 20 ft above sea level.

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3 years ago

If the boy is 5' 6" tall and his shadow is 4 ft. and the shadow of the flagpole is 18 ft., determine the height of the flagpole

Oduvanchick [21]

Answer:

The height of flagpole (to the nearest tenth) is, 24.7 ft

Step-by-step explanation:

Let x be the height of the flagpole.

Given: Height of the boy is 5' 6" , the length of the shadow of boy = 4 ft and the shadow of length of flagpole is 18 ft.

Use conversion: 1 ft = 12 in

Now, convert the height of the boy from feet and inches to feet, using above conversion.

5' 6" = $5' 6" = 5' + (\frac{6}{12})' = 5' + (\frac{1}{2})' = 5' + 0.5' = 5.5'$

Now, we write the ratio of the height and the length as:

$\frac{Height of the boy}{Length of shadow of boy} = \frac{Height of the flagpole}{Length of shadow of flagpole}$

then;

$\frac{5.5}{4} = \frac{x}{18}$

Multiply both sides by 18 we get;

$\frac{5.5}{4}\times 18= \frac{x}{18} \times 18$

Simplify:

$x = \frac{99}{4} = 24.75 ft$

Therefore, the height of flagpole to the nearest tenth is, 24.7 ft

6 0

3 years ago

Read 2 more answers

What is 8/11 divided by 3/5?

kramer

I believe it is 40/33

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4 years ago

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Answer:

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Step-by-step explanation:

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3 years ago