1 year ago

A model ship uses the scale 1 inch : 10 feet. If the model is 9.5 inches long, the ship is ____ feet long

Mathematics

1 answer:

Debora [2.8K]1 year ago

5 0

Answer:

i got 95 inches

Step-by-step explanation:

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The volume n divided by ten is one hundred

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3 years ago

The resistance, R of a wire varies directly as the length, l, and inversely as the diameter, d, squared. If R is 1.50ohms when l

tatyana61 [14]

Answer:

resistance is 1.5 ohms (1.5 Ω)

Step-by-step explanation:

R varies directly with l

R varies inversely with $d^2$

We can set-up a proportionality statement as shown below:

$R=k\frac{l}{d^2}$

Now, Given,

R = 1.50

l = 2

d = 1.5

We substitute and find k (the proportionality constant):

$R=k\frac{l}{d^2}\\1.5=k\frac{2}{1.5^2}\\1.5=\frac{2k}{2.25}\\2k=1.5*2.25\\2k=3.375\\k=1.6875$

Now, we will use this value of k to solve the problem.

Given,

l = 8

d = 3

and

k = 1.6875

We find R:

$R=k\frac{l}{d^2}\\R=1.6875\frac{8}{3^2}\\R=\frac{1.6875*8}{9}\\R=1.5$

The resistance is 1.5 ohms (1.5 Ω)

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2 years ago

The formula c = 5p + 220 relates c, the total cost in dollars of hosting a birthday party at a skating rink, to p, the number of

denis23 [38]

Answer:

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Step-by-step explanation:

c = 5p + 220

345 = 5p + 220

-220 -220

125 = 5p

/5 /5

25 = p

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