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Solnce55 [7]
3 years ago
7

Tina bought 20 apples and bananas for her class. Apples cost $1.50 each. Bananas cost $1.25 each. Tina spent $28 in all. How man

y apples and how many bananas did she buy?
Mathematics
1 answer:
babunello [35]3 years ago
6 0
Tina bought 12 bananas and 8 apples
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Drupady [299]
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The sum of the first 100 positive whole numbers is 5050. What is the sum of the first 100 positive odd whole number?
Rufina [12.5K]

The series of odd numbers is:

1, 3, 5, 7, 9, 11, 13, ....

If you observe this series, it is an Arithmetic Series with first term as 1 and common difference of 2. Common difference is defined as the difference between two consecutive terms of the series. So by using the formula of sum of an Arithmetic Series, we can find the sum of first 100 positive odd whole numbers.

The formula for the sum of an Arithmetic Series is:

S_{n}=\frac{n}{2}(2a_{1}+(n-1)*d)

Here,

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Using the values, we get:

S_{100}=\frac{100}{2}(2(1)+99*2)\\   \\  S_{100}=10000

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3 years ago
PLS HELP I GIVE BRAINLIEST
Mekhanik [1.2K]

Answer:

Step-by-step explanation:

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3x + y = 6<br>4x + 2y = 8​
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Answer:

x=2 y = 0

Step-by-step explanation:

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The answer to these please!
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3 years ago
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