The cost of using 19 HCF of water is $32.49
Given in the question:
The monthly cost (in dollars) of the water use (in dollars) is a linear function of the amount of water used (in hundreds of cubic feet, HCF)
The cost for using 17 HCF of water is using $32.13
and, the cost of using 35 HCF is $61.83.
To find the cost of using 19 HCF of water.
Now, According to the question:
The cost for using 17 HCF of water is $32.13
and, the cost of using 35 HCF is $61.83.
To find the slope:
(17, 32.13) and (35, 61.83)
Slope = (61.83 - 32.13)/ (35 - 17) = 1.65
We know that:
Formula of slope :
y = mx + b
32.13 = 1.65 x 17 + b
b = 1.14
The equation will be :
C(x) = 1.65x + 1.14
Now, To find the cost of using 19 HCF of water.
C(19) = 1.65 × 19 + 1.14
C(19) = $32.49
Hence, the cost of using 19 HCF of water is $32.49.
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Answer:
<h2>The mean is 26666.67 and the standard deviation is 372919430.33.</h2>
Step-by-step explanation:
The mean means the average of the numbers.
The mean will be 
.
The differences of the earnings from the mean are 1666.67, 26997.33, 33997.33.
Squaring the numbers we get, 2777788.89, 728855827.13, 1155818447.12.
We need to find the mean of the above numbers to get the standard deviation.
Thus, the standard deviation is 
.
Answer:
40 gallons
Step-by-step explanation:
Let the number of gallons that would completely fill the bathtub be represented by N.
Since 12 gallons of water gives 30% of the number of gallons to fill the bathtub, then;
30% of N = 12
x N = 12
30N = 12 x 100
30N = 1200
divide both sides by 30,
N = 
= 40
The number of gallons that would completely fill the bathtub is 40 gallons.
Based on the given task content; the Multiplication of the fraction 1 4/5 × 2/3 is 6/5
<h3>Multiplication of fraction</h3>
A fraction is a number which consists of the numerator and denominator. The types of fraction are:
- Proper fraction
- Improper fraction
- Mixed fraction
The numerator refers to the top or upper value of a fraction.
The denominator refers to the lower or bottom value of a fraction.
1 4/5 × 2/3
= 9/5 × 2/3
= (9 × 2) ) (5 × 3)
= 18 / 15
divide through by 3
= 6 / 5
So therefore, the the Multiplication of the fraction 1 4/5 × 2/3 is 6/5
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Answer:
-2
Step-by-step explanation: This is -2 because the point is right at -2.
