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3 years ago

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MONEY the wayside hotel charges its guest $1 plus $0.80 per minute for long distance calls. Across the street, blue sky hotel ch

arges $2 plus $0.75 per minute of long distances calls.

1 answer:

atroni [7]3 years ago

4 0

One dollar and eighty cents for wayside hotel
Two dollars and seventy five cents for blue sky hotel

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I really need help with this can someone please help me with these questions thanks

ehidna [41]

See the attachment for answers and solving.

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3 years ago

Mimi bought 7 eggs from each farmer at the farmers' market. Each farmer had an equal number of eggs. Is this sample of the eggs

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3 years ago

Find the rate of change

Arte-miy333 [17]

Answer:

2

Step-by-step explanation:

the rate of change is Rise/ Run

= Δy / Δx

= (y2 – y1) / (x2 – x1)

= (1 - (-1))/(-1 - (-2))

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2 years ago

Sandra is 4 feet tall. Pablo is 10% taller than Sandra, and Michaela is 8% taller than Pablo.

RoseWind [281]

Height of Sandra that is already mentioned in the question is = 4 feet
Percentage by which Pablo is taller than Sandra = 10%
Height by which Pablo is greater than Sandra = (10/100) * 4
   = (4/10)
   = 0.4 feet
Then height of Pablo is = 4 + 0.4
   = 4.4 feet
Now we can find the height of Michaela as she is 8% taller than Pablo.
Percent by which Michaela is taller than Pablo = 8%
Height by which Michaela is greater than Pablo = (8/100) * 4.4
      = (2 * 4.4)/25
      = 0.35 feet
Then the height of Michaela = (4.4 + 0.35) feet
   = 4.75 feet
So height of Michaela is 4.75 feet. This is the way this problem has to be solved.

7 0

3 years ago

Read 2 more answers

Find the x intercepts of the parabola with vertex (4,75) and y intercept (0,27)

user100 [1]

The equation for a parabola with vertex $(h, k)$ is
$y=a(x-h)^{2}+k$

We plug in:
$y=a(x-4)^{2}+75$

We find $a$ by plugging in the point $(0, 27)$ :
$27=a(0-4)^{2}+75$
$\Rightarrow 27=a(-4)^{2}+75$
$\Rightarrow 27=16a+75$
$\Rightarrow 16a=-48$
$\Rightarrow a=-3$

So our equation is
$y=-3(x-4)^{2}+75$

To find x-intercepts, we set $y=0$ :
$-3(x-4)^{2}+75=0$
$\Rightarrow -3(x-4)^{2}=-75$
$\Rightarrow (x-4)^{2}=25$
$\Rightarrow x-4=5, -5$
$\Rightarrow x=9, -1$

So the x-intercepts are 9 and -1.

8 0

3 years ago