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Vladimir [108]
3 years ago
10

A ramp with a constant incline is made to connect a driveway to a front door. At a point 4 feet from the driveway, the height of

the ramp is 12 inches. At a point 6 feet from the driveway, the height of the ramp is 18 inches. What is the rate of change of the ramp’s incline? 1/3 inch up per foot across 1/2 inch up per foot across 2 inches up per foot across 3 inches up per foot across
Mathematics
1 answer:
trapecia [35]3 years ago
4 0

Answer:

3in up per foot across

Step-by-step explanation:

4ft across 12in height

6ft across 18in height

So for every 2ft it goes up 6” which is a ratio of 1ft:3in so the answer to the rate of change is 3in up per 1ft across

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If one movie ticket cost $15, how much will 5 movie tickets cost
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Answer:

$75

Step-by-step explanation:

15 x 5 = 75

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Which table can be represented by a line?<br> A)<br> А<br> B)<br> B<br> C С<br> D<br> D
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6 0
2 years ago
What is the decimal equivalent o the rational number 6/11
koban [17]
Divide 6 by 11: 6/11=.5454545 :)
5 0
4 years ago
Molly runs each morning once around a circular path in her neighborhood. if the diameter of the path is 1.4 miles, how far does
Lemur [1.5K]
To work out the distance of the path, you need to find out the circumference.
Formula for circumference = pi multiplied by the diameter

So you simply do:
pi multiplied by 1.4 miles

And you should get:
4.39822971503... miles

Simply round the result to an appropriate value (e.g. 3 decimal places).

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6 0
3 years ago
The diameter of a iron sphere is 8 cm. It is beaten and drawn into a wire with a diameter of 2 mm. Find the length of the wire.
djyliett [7]

Answer : The length of the wire is, 8533 cm

Step-by-step explanation :

As the iron sphere is beaten and drawn into a wire. That means, their volume will be equal.

Volume of iron sphere = Volume of cylindrical wire

The formula will be:

\frac{4}{3}\pi r_1^3=\pi r_2^2h

where,

r_1 = radius of sphere = \frac{Diamtere}{2}=\frac{8cm}{2}=4cm

r_2 = radius of cylindrical wire = \frac{Diamtere}{2}=\frac{2mm}{2}=1mm=0.1cm

h = height of cylindrical wire or length of wire

Now put all the given values in the above formula, we get:

\frac{4}{3}\pi r_1^3=\pi r_2^2h

\frac{4}{3}\times r_1^3=r_2^2h

\frac{4}{3}\times (4)^3=(0.1)^2h

h=8533.33cm\approx 8533cm

Therefore, the length of the wire is, 8533 cm

6 0
3 years ago
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