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Akimi4 [234]
3 years ago
11

Lily found lots of change behind the couch. She found 280 coins total, and 70 of them are dimes. What percentage of the coins ar

e dimes?
Mathematics
2 answers:
amm18123 years ago
4 0

Answer:

25 percent

Step-by-step explanation:

70/280x100 gives as 25 percent

Alex_Xolod [135]3 years ago
4 0

Answer:

1/4 or 0.25%

Step-by-step explanation:

280 ÷ 70 = 1/4 or 0.25%

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Answer:

Z = 0.198877274

Step-by-step explanation:

(\frac{1}{4})^{3z-1} = 16^z + 2*16^{z-2}\\4^{1-3z} = 4^{2z} + 4^{\frac{1}{2}}*4^{2z-4}\\4^{1-3z} = 4^{2z} + 4^{2z-4+\frac{1}{2}}\\4^{1-3z} = 4^{2z} + 4^{2z-\frac{7}{2}}\\4^{1-3z} = 4^{2z} *(1+ 4^{-\frac{7}{2}})\\4^{1-3z} = 4^{2z} *(1+ 2^{-7})\\4^{1-3z} = 4^{2z} *(1+ \frac{1}{128} )\\4^{1-3z} = 4^{2z} *(\frac{129}{128} )\\Taking\;\; Logarithm\;\; with\;\; base\;\; 4\\Log_4(4^{1-3z}) = Log_4(4^{2z}) + Log_4(\frac{129}{128})\\1-3z = 2z + 0.005613627712 \\5z = 0.994386372\\z = 0.198877274

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8 0
3 years ago
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What is the property of this equation? if 2x=8 then x=4
Eva8 [605]
Answer is 2 x 4=8 this is a scientific property
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3 years ago
What are the factor of pair of number?
Sedbober [7]
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Answer:

1. Yes;   2. Yes ;     3. No;       4. Yes

Step-by-step explanation:

The proportion will have to be read the same way.  For example top Δ bottom  to the lower Δ bottom (locate in the same place)

14/21 = 6 /9     Yes  because the top Δ bottom to lower Δ bottom = top side to  

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                                     the lower Δ  

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8 0
3 years ago
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Vsevolod [243]

Answer:

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Step-by-step explanation:

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=\frac{5!}{2!}

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Hence, there are 60 permutations that can be formed from the first five letters of the alphabet.

6 0
4 years ago
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