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anygoal [31]
3 years ago
8

How many odd numbers are between 20-100?​

Mathematics
2 answers:
cestrela7 [59]3 years ago
8 0

Answer:

there are forty odd numbers

Step-by-step explanation:

asambeis [7]3 years ago
7 0

Answer:

40

Step-by-step explanation:

there are 40 odd numbers and 40 even numbers because every odd number is every second number so its basically 80/2

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Can anyone help me on this problem? Please it doesn’t make sense to me...
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Answer:

6

Step-by-step explanation:

Cost per item is found by dividing the cost by the number of items. If the woman bought n items for $120, the cost of each item is $120/n. If the woman bought 24 more items, n+24, at the same price, then the cost per item is $120/(n+24). The problem statement tells us this last cost is $16 less than the first cost:

120/(n+24) = (120/n) -16

Multiplying by n(n+24) gives ...

120n = 120(n+24) -16(n)(n+24)

0 = 120·24 -16n^2 -16·24n . . . . . . subtract 120n and collect terms

n^2 +24n -180 = 0 . . . . . . . . . . . . . divide by -16 to make the numbers smaller

(n +30)(n -6) = 0 . . . . . . . . . . . . . . factor the quadratic

The solutions to this are the values of n that make the factors zero: n = -30, n = 6. The negative value of n has no meaning in this context, so n=6 is the solution to the equation.

The woman bought 6 items.

_____

Check

When the woman bought 6 items for $120, she paid $120/6 = $20 for each of them. If she bought 6+24 = 30 items for the same money, she would pay $120/30 = $4 for each item. That amount, $4, is $16 less than the $20 she paid for each item.

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3 years ago
What's the answer ?????
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The awnser is a I hope I helped you out
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Step-by-step explanation:

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