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Alex Ar [27]
3 years ago
11

A persons bill at a restaurant is $42.75. Estimate the amount of a 15% tip

Mathematics
1 answer:
Alina [70]3 years ago
7 0

$6.41

Step-by-step explanation:

$42.75 x 15% (which is .15) = $6.41 is the tip

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A= 1/2 h (a+b), solve for b
fenix001 [56]

Answer:  

b=2A/h-a

Step-by-step explanation:  

A=1/2h(a+b)

Multiplying by 2

2A=h(a+b)

Dividing by h  

2A/h=a+b

Subtracting a  

2A/h-a =b

b=2A/h-a

4 0
3 years ago
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The amounts of sugar (grams of sugar per gram of cereal) and calories (per gram of cereal) were recorded for a sample of 16 diff
tigry1 [53]

Answer:

The best predicted calorie count for a cereal with a measured sugar amount of 0.40 g is 3.864

Step-by-step explanation:

Consider the provided information.

he linear correlation coefficient is r= 0.765 and the regression equation is \hat y= 3.46 + 1.01\times x

The mean of the 16 amounts of sugar is 0.295 grams and the mean of the 16 calorie counts is 3.76.We need to find the best predicted calorie count for a cereal with a measured sugar amount of 0.40 g

Substitute x = 0.40 in the given equation.

\hat y= 3.46 + 1.01\times 0.40

\hat y= 3.46 + 0.404

\hat y= 3.864

Hence, the best predicted calorie count for a cereal with a measured sugar amount of 0.40 g is 3.864

6 0
3 years ago
Help plzzzzzz! Sandy works at a clothing store. She makes $9 per hour plus earns 10% commission on her sales. She worked 72 hour
Mamont248 [21]

Answer:

Step-by-step explanation:

Payment per hour is $8

commission is 15%

Total number of hours worked for 2 weeks is 73 hours

Total sales=$2095

commission earned for 2 weeks:

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=$314.25

Total amount earned in 73 hours:

73×8=$584

Total amount earned in commission and wages:

584+314.25

=$898.25

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Step-by-step explanation:

first minus the number of minutes he doesn't have to pay

400 - 150 = 250

then times the number of leftover minutes by how much it costs a minute ($.35 because 35¢ is equal to $.35)

250 × $.35 = $87.50

that's how much.

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What number represents thr same amount as 3 hundreds + 4 tens + 16 ones
PilotLPTM [1.2K]

Answer:

356

Step-by-step explanation:

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