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3 years ago

Kiran has used `\frac{4}{5}`of the pieces in his jigsaw puzzle. He has used 120 pieces. How many pieces are in the whole puzzle?

Mathematics

1 answer:

Yuki888 [10]3 years ago

7 0

Answer: 150 pieces

Step-by-step explanation:

Kiran has used 4/5 of the pieces of the puzzle.

This number translates to 120 pieces.

Assuming the total number of pieces is x, the formula for the total number is:

4/5x = 120

x = 120 ÷ 4/5

x = 120 * 5/4

x = 150 pieces

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Answer:

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Step-by-step explanation:

Step 1: Simplify both sides of the equation.

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3 years ago

The leaning tower of Pisa currently "leans" at a 4 degree angle and has a vertical height of 55.86 meters. How tall was the lean

Marizza181 [45]

Answer:

56 meters.

Step-by-step explanation:

Please find the attachment.

Let the leaning tower's be h meters tall, when it was originally built.

We can see from our attachment that the side with length 55.86 meters is hypotenuse and h is adjacent side for 4 degree angle.

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$\text{Cos}=\frac{\text{Adjacent}}{\text{Hypotenuse}}$

Upon substituting our given values we will get,

$\text{Cos (4)}=\frac{55.86}{h}$

$h=\frac{55.86}{\text{Cos (4)}}$

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S = 0.25 in² + 4×0.10 in² = 0.65 in²

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