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love history [14]
3 years ago
15

15 decreased by twice a number x in algebriac expression

Mathematics
1 answer:
postnew [5]3 years ago
4 0
2x - 15

15 is decreased that is the key word here which indicates subtraction.

twice a number with given variable x is 2x

subtraction always goes behind so 2x - 15
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<u>Step-by-step explanation:</u>

Harlie invests $325 in an account.

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  • Interest rate, r = 8% ⇒ 0.08
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<u>The formula to find the interest will Charlie’s initial investment earn over the 15-year period :</u>

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