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STALIN [3.7K]
3 years ago
8

I am doing a percent equation problem and I need help please here’s the question 20% of blank =10

Mathematics
1 answer:
Lina20 [59]3 years ago
4 0

Answer:

50

Step-by-step explanation:

Let x = blank (for convenience)

20\%x=10

0.2x=10 (change 20\% into its decimal form)

x = 10\div 0.2 (divide 0.2 on both sides)

x=50

∴ Blank = 50

Hope this helps :)

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Answer:

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Step-by-step explanation:

Hi, the illustration for the problem is a right triangle with:

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vertical side(B) = distance from the top of the ladder to the bottom of the building = L - 3

So, we can use Pythagoras formula:

A2 +B2= C2

(L – 6 )² + (L-3)² = L²

L²-12L+36+L²-6L+9 =L²

L2 -18L+45 =0

APPLYING QUADRATIC FORMULA WE OBTAIN:

L =15 OR L=3

If L=3

Vertical side = L-3 = 0 (Length can´t be 0)

So L=15

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Answer:

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Step-by-step explanation:

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