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Nikitich [7]
2 years ago
5

Which property is illustrated by the equation 3(mn)=(3m)n?

Mathematics
2 answers:
yKpoI14uk [10]2 years ago
5 0
Associative property of multiplication
...........................................................
Elenna [48]2 years ago
3 0
That would be the associative property
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The coffee Lily likes is composed of 97.3% water and 2.7% cocoa. The coffee John likes is composed of 96% water and 4% cocoa. Ho
mestny [16]

30 ounces of the coffee John likes consists of

  • 0.96\cdot30=28.8 ounces of water
  • 0.04\cdot30=1.2 ounces of cocoa

To this mixture we're adding x ounces of water, so that the new mix has a total volume of 30+x ounces and matches the composition of the coffee Lily likes. This means it would consist of

  • 0.973\cdot(30+x)=28.8+x ounces of water
  • 0.027\cdot(30+x)=1.2 ounces of cocoa (same amount of cocoa as before because pure water is being added)

Solve for x:

0.973(30+x)=28.8+x\implies29.12+0.973x=28.8+x

\implies0.39=0.027x

\implies x\approx14.4

###

Just to confirm: the new mixture consists of

  • 28.8+14.4=43.2 ounces of water
  • 1.2+0=1.2 ounces of cocoa

giving a total volume of 43.2+1.2=44.4 ounces of coffee, and \dfrac{43.2}{44.4}\approx0.973, as required.

4 0
3 years ago
Set 2 Maths has 30 pupils in it.
Ierofanga [76]
80/100 x 30 = 24 because you just multiply percents
4 0
2 years ago
the seed and skin of a typical avacado is about 30%-40% of the avocados weight. for an 8-ounce avocado, how many ounces of edibl
wolverine [178]

Answer:

Edible fruit amount is 4.8 ounce to 5.6 ounce  

Step-by-step explanation:

Given as

The seed and skin of avocados is about 30%-40%

And the weight of avocados is 8 ounce

So, the weight of seed and skin is about 30% of 8 to 40% of 8

i.e 2.4 ounce to 3.2 ounce

Then the edible fruit is about 60% to 70%

i.e 60% of 8 to 70% of 8

Thus edible fruit of avocados = 4.8 ounce to 5.6 ounce   Answer

5 0
3 years ago
Estimate the difference 68,283−47,849 by rounding each number to the nearest ten thousand.
kap26 [50]

Answer:

70,000-50,000=20,000

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What two numbers are the sum of 42,000?
faltersainse [42]
21,000+21,000=42,000


I hope it helps
3 0
3 years ago
Read 2 more answers
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