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3 years ago

11

A dinner costs $89.75 Your share of the bill is 20%. The best estimate of your share is:

1 answer:

dusya [7]3 years ago

7 0

Answer:

17.95

Step-by-step explanation:

x over 20 89.75 over 100 then cross multiply

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208.5714

Step-by-step explanation:

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3 years ago

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Find the surface area of a sphere with radius of 8inches

diamong [38]

Answer:

200.96in

Step-by-step explanation:

I used this equation with 3.14 as pi

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3 years ago

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Step-by-step explanation:

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2 years ago

Consider the set of differences, denoted with d, between two dependent sets: 84, 85, 83, 63, 61, 100, 98. Find the sample standa

sveta [45]

Answer:

The sample standard deviation is 15.3.

Step-by-step explanation:

Given data items,

84, 85, 83, 63, 61, 100, 98,

Number of data items, N = 7,

Let x represents the data item,

Mean of the data points,

$\bar{x}=\frac{84+85+83+63+61+100+98}{7}$

$=82$

Hence, sample standard deviation would be,

$\sigma= \sqrt{\frac{1}{N-1}\sum_{i=1}^{N} (x_i-\bar{x})^2}$

$=\sqrt{\frac{1}{6}\sum_{i=1}^{7} (x_i-82)^2}$

$=\sqrt{\frac{1}{6}\times 1396}$

$=\sqrt{232.666666667}$

$=15.2534149182$

$\approx 15.3$

4 0

2 years ago

During a 35% off sale at the furniture store, you found a chair with the original price of $84.61. How much will the sale price

Dafna11 [192]

Answer:55$

Step-by-step explanation:84.61 x .35 = 29.61

84.61 - 29.61 = 55

7 0

3 years ago