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4 years ago

15

What is 80% of 30? I need help, please help me!

1 answer:

Monica [59]4 years ago

4 0

To work out 10% you divide it by then. 10% of 30 is 3. To get 80% from 10%, you times it by 8. 3X8=24

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baherus [9]

Answer:

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3 years ago

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Round 308.61 to tenths?!

KatRina [158]

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3 years ago

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Ann [662]

Answer: There are 4 rolls she should buy.

Step-by-step explanation:

Since we have given that

Length of wall = 9 feet

Width of wall = 11 feet

Height of wall = 8 feet

As we know the formula for "Area of four walls ":

$Area=2(l+b)h\\\\Area=2(9+11)\times 8\\\\Area=2\times 20\times 8\\\\Area=320\ ft^2$

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So, Number of single rolls of wallpaper is given by

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4 years ago

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Viefleur [7K]

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3 years ago

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mamaluj [8]

1/2 2/4 3/6 4/8 6/12

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