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andrew11 [14]
3 years ago
6

Myra owns a car service that charges a $5 flat rate and an additional $0.50 per mile, which is represented by the equation y = 0

.5x + 5, where x is the number of miles and y is the total cost.
How much is the total cost for a car with 30 miles?
Mathematics
2 answers:
klasskru [66]3 years ago
6 0
Just substitute
0.5(30)+5 =20
Nataly [62]3 years ago
3 0
$20
Because it costs $0.50 per mile so 0.50 times 30 but then you have the 5$ flat rate.
0.50x30+5=20
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Can I get some help, it is due in 15 minutes and I need help. Thanks, any help appreciated
koban [17]

Well, I'm way past the 15 min mark, but here's how to do the question.


With this, you will need to use the distance formula, \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}, on XY, YZ, and ZX.



XY: \sqrt{(3-1)^2+(1-6)^2}


Firstly, solve inside the parentheses: \sqrt{(2)^2+(-5)^2}


Next, solve the exponents: \sqrt{4+25}


Next, solve the addition, and XY's distance will be √29



(The process is the same with the other 2 sides, so I'll go through them real quickly)


YZ:

\sqrt{(6-3)^2+(3-1)^2}\\ \sqrt{(3)^2+(2)^2}\\ \sqrt{9+4}\\ \sqrt{13}



ZX:

\sqrt{(1-6)^2+(6-3)^2}\\ \sqrt{(-5)^2+(3)^2}\\ \sqrt{25+9}\\ \sqrt{34}



Now that we got the 3 sides, we can add them up: \sqrt{29}+\sqrt{13} +\sqrt{34} =14.8


In short, your answer is 14.8, or the second option.

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3 years ago
Is 32.725 = to 32.735
Arturiano [62]

Answer:

no it is not 32.725 is 0.01 less than

8 0
3 years ago
.<br> Choose the description of the graph of the equation x = -8.
pickupchik [31]
The description should be a vertical line on the negative side on the grid and the vertical line should be placed on the negative 8 on the x axis.

3 0
3 years ago
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Please help i dont understand thank you
Alenkasestr [34]

Answer:

Part a)

We need to find the equation of a straight line passing through two given points in slope-intercept form

Part b)

The information given; we are given two points where the line passes through; (0, -4) and (-2, 2)

Part c)

We shall first determine the slope of the line using the formula;

change in y/change in x. Next, we determine the value of the y-intercept using the general form of the equation of a straight line in slope-intercept form; y = mx+c

Part d)

The slope of the line is calculated as;

(2--4)/(-2-0) =6/-2 = -3

The equation of the line in slope-intercept form becomes;

y = -3x +c

We use the point (0, -4) to determine the value of c;

-4 = -3(0)+c

c = -4

Part e)

Final solution thus becomes;

y=-3x-4

8 0
3 years ago
4(2x + 1) = 6x + 10<br> Help
Lerok [7]

Answer:

x=3

Step-by-step explanation:

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3 years ago
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