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Gala2k [10]
3 years ago
8

If y varies directly as x and y = 144 when x = 8, find y when x = 4.

Mathematics
1 answer:
lora16 [44]3 years ago
8 0

Answer:

72 i think

Step-by-step explanation:

144 divided by 8 is 18

4 x 18 = 72.

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In 1993 eggs cost $0.87 a dozen. In 2003 it cost $1.56 a dozen. How much did the eggs appreciate (percent of increase)?
rusak2 [61]

Answer:

190%

Step-by-step explanation:

$1.56 is close to nearly 2x the value of $0.87

You can start by multiplying $0.87 by 2 to get $1.74

Now put $1.56 / $1.74

This gets you 0.89655172

By rounding this, you can get to 0.90

Move the decimal places two spots over to get a percentage = 90%

Since the eggs didn't decrease in value, you can add the 100% from the beginning of the problem.

100+90=190%

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3 years ago
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AlexFokin [52]
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SVEN [57.7K]
<span>Subtract 13.09 from 21.59 giving you 8.5. Since the amount of space on both the left and right margin have to be equal you would divide by 2 to get 4.25 on the left margin as well as the right.</span>
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3 years ago
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Please help! (100 points)
beks73 [17]

Answer:

A.)  V = 160π

B.)  V = 502.4 inches^3

Step-by-step explanation:

Part A:

<u>Formula for the volume of a cylinder:  V = π * r^2 * h</u>

r^2 can be broken into r * r

π can be represent by 3.14

It is the same as:  <u>V = r * r * h * 3.14</u>

V = 4 * 4 * 10 * π

V = 160π

Answer:  V = 160π

Part B:  

<u>Step 1:  Plug in</u>

V = 4 * 4 * 10 * 3.14

V = 16 * 31.4

V = 502.4 inches^3

Answer:  V = 502.4 inches^3

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Answer:

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Step-by-step explanation:

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