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forsale [732]
2 years ago
12

Long division using place value

Mathematics
1 answer:
Alex2 years ago
7 0

Answer:

this involves dividing numbers by making use of their place values or value

Step-by-step explanation:

hope this is helpful

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The instructions for building a kite tell you to begin by cutting a strip of wood to 45 cm in length, but your ruler only measur
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I got 17.72 for this one.
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3 years ago
(a) Suppose you have 9 gold coins that look identical, but you also know one (and only one) of them is counterfeit. The counterf
alisha [4.7K]

Answer:

Step-by-step explanation:

You can split the coins into 3 groups, each of them has 3 coins. Weigh group 1 vs group 2, if one is lighter, that group has the fake coin. If both groups weigh the same, then group 3 has the fake coin.

Continue to split the group that has the fake coin into 3 groups, each group has 1 coin. Now apply the same procedure and we can identify the fake coin.

Total of scale usage is 2

b) if you have 3^n coins then you can apply the same approach and find the fake coin with just n steps. By splitting up to 3 groups each step, after each step you should be able to narrow down your suspected coin by 3 times.

Step 1: you narrow down to group of \frac{3^n}{3} = 3^{n-1} coins

Step 2: you narrow down to group of \frac{3^{n-1}}{3} = 3^{n-2} coins

Step 3: you narrow down to group of \frac{3^{n-2}}{3} = 3^{n-3} coins

...

Step n: Step 1: you narrow down to group of 3^{n-n} = 3^0 = 1coin

8 0
3 years ago
Karen has 6 more than twice as many newspaper customers as when she started selling newspapers. She now has 98 customers. How ma
Black_prince [1.1K]

Answer:

46 customers

Step-by-step explanation:

If the number of original customers is n, we can write the following equation:

98 = 2n + 6

92 = 2n

46 = n

5 0
3 years ago
Given log5 3=0.6826 and log5 8=1.2920, evaluate the expressions<br><br> Please help!?
gulaghasi [49]

Answer:

a) 1.3652

b) 1.3906

Step-by-step explanation:

a) log5 9 = log5 3² = 2log5 3 = 2(0.6826) = 1.3652

b) log5 75/8 = log5 75 - log5 8 = log5 3×25 - log5 8=

log5 3 + log5 5² - log5 8 = 0.6826 + 2 - 1.2920 = 0.6826 + 0.708 = 1.3906

3 0
2 years ago
Read 2 more answers
Quick, anyone know the answer?
SVETLANKA909090 [29]
Your answer would be A :)
4 0
3 years ago
Read 2 more answers
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