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2 years ago

The price of a notebook was $3.70 yesterday. Today, the price fell to $3.20. Find the percent decrease

Mathematics

1 answer:

jeyben [28]2 years ago

6 0

Answer:

86% Decrease

Step-by-step explanation:

3.70 times x= 3.20 3.20 divided by 3.70= 0.86

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3 years ago

Need help ASAP!!!!!!

Mnenie [13.5K]

Answer:

Mean = 2.95

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Step-by-step explanation:

The mean of the number of visits of 40 adults to the gym is

$\dfrac{0\cdot 4+1\cdot 3+2\cdot 12+3\cdot 5+4\cdot 8+5\cdot 5+6\cdot 2+7\cdot 1}{40}=\\ \\=\dfrac{3+24+15+32+25+12+7}{40}=\dfrac{118}{40}=2.95$

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3 years ago

The diagram shows a regular dodecagon.Work out the size of one interior angle

nikdorinn [45]

Answer:

150°

Step-by-step explanation:

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2 years ago

PEASE HELP ASAP!!! The sum of two numbers is 58.

agasfer [191]

Answer:

y=15

x=43

(any variable can be used, I used x and y to make it easier to show)

Step-by-step explanation:

x+y=58

x-y=28

get x by its self

x=58-y

then subsitute into the other equation

(58-y)-y=28

58-2y=28

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sub. again

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8 0

2 years ago

Read 2 more answers