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Mkey [24]
3 years ago
8

Help please, explain each step or no points.

Mathematics
1 answer:
Leno4ka [110]3 years ago
8 0
The proportion pop/total = 5/7 is presumed to hold for the next 500 songs.

pop/500 = 5/7
pop = 500*5/7 ≈ 357

357 of the next 500 songs downloaded are expected to be pop songs.
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3 years ago
I don’t understand this!!
Rufina [12.5K]

Answer:

9, 11, 13

Step-by-step explanation:

We can rephrase an odd number into an algebraic equation of (2n+1)

Therefore, 3 consecutive odd numbers would be written as:

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We can then rewrite the question as:

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Work out the equation to find n:

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(minus 4n from both sides)

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(minus 3 from both sides)

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To find the original 3 consecutive numbers, we just input (4) into (2n+1), (2n+3), (2n+5) to get:

(8+1), (8+3), (8+5)

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2 years ago
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If the interest is the same for both accounts then:

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Which expression is equivalent to the expression 1/4 (x- 2) + 1/3x HELP
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