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3 years ago

15

A rental car costs a onetime fee of $150 and then an additional $80 for each day it is rented. If the Nawa family's total bill w

as $470, for how many days did they rent the car?

1 answer:

anyanavicka [17]3 years ago

8 0

Cost=150+ 80d....d=number of days
470=150+80d
470-150=80d
320=80d divide by 80
4=d
she rented the car for 4 days<span />

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Which equation represents the line containing (0,-2) and (2,-1)?

77julia77 [94]

Answer:

The answer is A.

Step-by-step explanation:

You can make a test by substituing x-coordinate into the equation :

$y = \frac{1}{2} x - 2$

$let \: x = 0$

$y = \frac{1}{2} (0) - 2$

$y = - 2 \: (correct)$

$let \: x = 2$

$y = \frac{1}{2} (2) - 2$

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3 years ago

what are the minimum first quartile median third quartile and the maximum of the data set? 9,20,4,18,4,18,20,9

den301095 [7]

<u>Answers</u>
1. Minimum = 4
2. First quartile = 6.5
3. Median = 13.5
4. Third quartile = 19
5. Maximum = 20

<u>Explanation</u>
To calculate the measure of central tendency, you first arrange the set of the data in ascending order.
The set of data given will be;
4, 4, 9, 9, 18, 18, 20, 20.

Part 1:
The minimum value of the data is 4.

Part 2:
The first quatile is the median of the lower half which is comprised by:
4, 4, 9, 9

1st quartile = (4+9)÷2
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Part 3:
Median of the data is;

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Part 4:
3rd quartile is the median of the upper half which comprises of;
18, 18, 20, 20.

3rd quartile = (18+20)÷2
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Part 5
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7 0

3 years ago

Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil plus a flat fee for labor. Th

zvonat [6]

The labor fee is $13.55 and each quart of oil is $2.25

Step-by-step explanation:

Let,

x be the amount of each quart of oil

y be the amount of labor fee

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7x+y=29.30 Eqn 2

Subtracting Eqn 1 from Eqn 2

$(7x+y)-(5x+y)=29.30-24.80\\7x+y-5x-y=4.50\\2x=4.50$

Dividing both sides by 2

$\frac{2x}{2}=\frac{4.50}{2}\\x=2.25$

Putting x=2.25 in Eqn 1

$5(2.25)+y=24.80\\11.25+y=24.80\\y=24.80-11.25\\y=13.55$

The labor fee is $13.55 and each quart of oil is $2.25

Keywords: linear equation, subtraction

Learn more about subtraction at:

#LearnwithBrainly

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3 years ago

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Paraphin [41]

Answer is A. 18
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3 years ago

Read 2 more answers

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A rational number is any number that can be turned into a fraction....it can be negative or positive.

Therefore, -12/6 is a rational number

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3 years ago