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Pavel [41]
2 years ago
11

PLEASEE HELP IM BEGGING YOU

Mathematics
2 answers:
Lubov Fominskaja [6]2 years ago
8 0

Answer:

At approximately 5.1 hours, both hosts will charge about the same amount.

Step-by-step explanation:

First, form the equations for both hosts.

X represents hours and the number by itself (75, and 84) are the initial amount.

Host A: y = 12.25x + 75

Host B: y = 10.50x + 84

Now, we would set the equations equal to each other to solve for x, which will help us determine when both hosts will charge the same amount.

12.25x + 75 = 10.50x + 84

Subtract 10.50x and 75 from both sides.

1.75x = 9

Now, divide by 1.75.

x = 5.1428571428571428571428571428571

It says round to the nearest tenth, so we would round to 1 decimal place after the decimal.

x = 5.1

At approximately 5.1 hours, both hosts will charge about the same amount.

Brilliant_brown [7]2 years ago
6 0

Answer:

At 7.5 hours

Step-by-step explanation:

good luck dude

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Mike and Teegan each measured the volume of the 16-ounce bottle three times. They recorded their measurements as shown. Mike: 16
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Answer:

The correct option is;

Mike's measurement are more precise and more accurate

Step-by-step explanation:

The given information are;

The mass of the measured bottle = 16-ounce

The record of the measurements made by Mike are;

16.4 oz

15.2 oz

15.8 oz

The record of the measurements made by Teegan are;

16.34 oz

16.59 oz

15.13 oz

From the two measurements, we have;

The precision of a measurement depends on how close the values of the measurement are to one another, therefore, we have;

For Mike, the precision is given as follows

16.4 - 15.2 = 1.2

16.4 - 15.8 = 0.6

15.8 - 15.2 = 0.6

Total difference = 1.2 + 0.6 + 0.6 = 2.4

For Teegan , the precision is given as follows

16.59 - 16.34 = 0.25

16.59 - 15.13 = 1.46

16.34 - 15.13 = 1.21

Total difference = 0.25 + 1.46 + 1.21 = 2.92

Therefore, Mike's measurements are more precise than Teegan's measurements

The accuracy of the measurement is the amount of closeness the measurements are to a given value

In the question, the given value is 16-ounces of the volume of the bottle

Therefore, by the mean absolute deviation from the 16-ounce of the bottle, we have;

For Mike;

Mean \ absolute  \ deviation = \dfrac{\left | 16.4 - 16 \right | + \left | 15.2 - 16 \right | + \left | 15.8 - 16 \right | }{3} = 0.533

For Teegan, we have;

Mean \ absolute  \ deviation = \dfrac{\left | 16.34 - 16 \right | + \left | 16.59 - 16 \right | + \left | 15.13 - 16 \right | }{3} = 0.6

Therefore, Mike's measurement is more accurate than Teegan's measurement.

Which gives;

Mike's measurement are more precise and more accurate.

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