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zavuch27 [327]
3 years ago
10

A painting is 24 in. Wide by 32in. Long. The width of a postcard reductions of the painting is 3in. How long is the postcard

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
7 0

Answer:

4 inches.

Step-by-step explanation:

24 32

---- = -----

3 x

Cross multiply.

24x = (32)(3) = 96.

96 / 24 = 4.

Hope this helped and good luck! (:

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3 years ago
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A 46 gram sample of a substance that is used to sterilize surgical instruments has a k-value of 0.1374. Find the substance's hal
mars1129 [50]

Answer:

  t=5.0days

Step-by-step explanation:

Using the formula for the exponential decay that is N=N_{0}e^{-kt}, we have N=\frac{1}{2}{\times}46=23, N_{0}=46 and k=0.1374.

Thus, N=N_{0}e^{-kt} becomes

23=46{\times}e^{-0.1374t}

\frac{23}{46}=e^{-0.1374t}

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Taking log on both sides, we get

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t=\frac{ln\frac{1}{2}}{-0.1}

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4 0
2 years ago
E. 2078-01-08
Mazyrski [523]

Answer:

the full question isn't there. what do you need to find the number of??

4 0
3 years ago
A map that has a scale of 3 cm: 18 km. If Riverside and Smithville are 54km apart then they are how far apart on the map?
SVETLANKA909090 [29]

Setting up the ratio, you get 3/18=x/54. Solve the proportion, you get that Riverside and Smithville are 9 cm apart on the map.


8 0
2 years ago
HELP:::: Find the volume
ad-work [718]

Answer:

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Step-by-step explanation:

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V= 94,080

Hope this helps, good luck!

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