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vlabodo [156]
2 years ago
12

I need the answer to part B

Mathematics
1 answer:
LenaWriter [7]2 years ago
6 0
My guess is that so all the numbers have the same amount of significant digits.
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What is the sum 10 + (-10)
Marta_Voda [28]

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0

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B

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Step-by-step explanation:

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Eva has £6.05 in her moneybox.
PIT_PIT [208]

Answer:

11 of 20p, 22 of 10p and 33 of 5p

Step-by-step explanation:

Eva has 20p, 10p and 5p coins, total of £6.05 = 605p

Let 20p=x, 10p=y, 5p=z

<u>Then</u>:

  • 20x + 10y + 5z = 605
  • y : x = 2 : 1 ⇒ x= y/2
  • y : z = 2 : 3 ⇒ z= 3y/2

<u>Rewriting the first equation considering next two:</u>

  • 10y + 10y + 7.5y = 605
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<u>Answer:</u> 11 of 20p coins, 22 of 10p coins and 33 of 5p coins

3 0
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